{"Name":"Pitt-Hopkins syndrome","DiseaseID__c":"GARD:0004372","id":4372,"encodedName":"pitt-hopkins-syndrome","IsDeleted":false,"Disease_Name_Full__c":"Pitt-Hopkins syndrome","Xref_IDs__c":"423022877; 702344008; C129872; C1970431; C537403; DOID:0060488; MEDGEN:370910; MONDO:0012589; NBK100240; OMIM:610954; ORPHA:2896","USA_Estimate__c":"5,000","No_of_Specialist_Tagsa__c":5,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":1,"No_of_HHS_records__c":2,"World_Estimate__c":"8,000 to 80,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":4,"No_of_Disease_Descriptions__c":5,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0012589","Disease_Description__c":"A rare multiple congenital anomalies syndrome characterized by the association of intellectual deficit, characteristic facial morphology and problems of abnormal and irregular breathing.","GARD_Name__c":"Pitt-Hopkins syndrome","GARD_Synonym__c":"encephalopathy, severe epileptic, with autonomic dysfunction; pths; pths - pitt-hopkins syndrome","Curated_Disease_Description_Source__c":"GARD:0004372","Curated_Disease_Description__c":"Pitt-Hopkins syndrome is a condition characterized by intellectual disability and developmental delay, breathing problems, recurrent seizures (epilepsy), and distinctive facial features. People with Pitt-Hopkins syndrome have moderate to severe intellectual disability. Most affected individuals have delayed development of mental and motor skills (psychomotor delay). They are delayed in learning to walk and developing fine motor skills such as picking up small items with their fingers. People with Pitt-Hopkins syndrome typically do not develop speech; some may learn to say a few words. Many affected individuals exhibit features of autistic spectrum disorders, which are characterized by impaired communication and socialization skills. Breathing problems in individuals with Pitt-Hopkins syndrome are characterized by episodes of rapid breathing (hyperventilation) followed by periods in which breathing slows or stops (apnea). These episodes can cause a lack of oxygen in the blood, leading to a bluish appearance of the skin or lips (cyanosis). In some cases, the lack of oxygen can cause loss of consciousness. Some older individuals with Pitt-Hopkins syndrome develop widened and rounded tips of the fingers and toes (clubbing) because of recurrent episodes of decreased oxygen in the blood. The breathing problems occur only when the person is awake and typically first appear in mid-childhood, but they can begin as early as infancy. Episodes of hyperventilation and apnea can be triggered by emotions such as excitement or anxiety or by extreme tiredness (fatigue). Epilepsy occurs in most people with Pitt-Hopkins syndrome and usually begins during childhood, although it can be present from birth. Individuals with Pitt-Hopkins syndrome have distinctive facial features that include thin eyebrows, sunken eyes, a prominent nose with a high nasal bridge, a pronounced double curve of the upper lip (Cupid's bow), a wide mouth with full lips, and widely spaced teeth. The ears are usually thick and cup-shaped. Children with Pitt-Hopkins syndrome typically have a happy, excitable demeanor with frequent smiling, laughter, and hand-flapping movements. However, they can also experience anxiety and behavioral problems. Other features of Pitt-Hopkins syndrome may include constipation and other gastrointestinal problems, an unusually small head (microcephaly), nearsightedness (myopia), eyes that do not look in the same direction (strabismus), short stature, and minor brain abnormalities. Affected individuals may also have small hands and feet, a single crease across the palms of the hands, flat feet (pes planus), or unusually fleshy pads at the tips of the fingers and toes. Males with Pitt-Hopkins syndrome may have undescended testes (cryptorchidism).","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"5,000","Age_at_Onset_Snippet_Text__c":"as a Newborn and as an Infant","SourceID__c":"ORPHA:2896","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0012589","ORPHANET_ID__c":"ORPHA:2896","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de pitt hopkins","Spanish_Description_Source__c":"ORPHA:2896","Spanish_Description__c":"Es un síndrome de múltiples anomalías congénitas poco frecuentes caracterizado por la asociación de discapacidad intelectual, morfología facial característica y un patrón de respiración anómalo e irregular.","Spanish_Disease_Name__c":"síndrome de pitt hopkins","Spanish_GARD_Synonym__c":null,"Category_Linearization__c":"ORPHA:93890","icd10_id__c":null,"mesh_id__c":null,"omim_id__c":null,"snomed_id__c":null,"umls_id__c":null,"GARD_Disease__c":[{"Curated_Disease_Description__c":"Pitt-Hopkins syndrome is a condition characterized by intellectual disability and developmental delay, breathing problems, recurrent seizures (epilepsy), and distinctive facial features. People with Pitt-Hopkins syndrome have moderate to severe intellectual disability. Most affected individuals have delayed development of mental and motor skills (psychomotor delay). They are delayed in learning to walk and developing fine motor skills such as picking up small items with their fingers. People with Pitt-Hopkins syndrome typically do not develop speech; some may learn to say a few words. Many affected individuals exhibit features of autistic spectrum disorders, which are characterized by impaired communication and socialization skills. Breathing problems in individuals with Pitt-Hopkins syndrome are characterized by episodes of rapid breathing (hyperventilation) followed by periods in which breathing slows or stops (apnea). These episodes can cause a lack of oxygen in the blood, leading to a bluish appearance of the skin or lips (cyanosis). In some cases, the lack of oxygen can cause loss of consciousness. Some older individuals with Pitt-Hopkins syndrome develop widened and rounded tips of the fingers and toes (clubbing) because of recurrent episodes of decreased oxygen in the blood. The breathing problems occur only when the person is awake and typically first appear in mid-childhood, but they can begin as early as infancy. Episodes of hyperventilation and apnea can be triggered by emotions such as excitement or anxiety or by extreme tiredness (fatigue). Epilepsy occurs in most people with Pitt-Hopkins syndrome and usually begins during childhood, although it can be present from birth. Individuals with Pitt-Hopkins syndrome have distinctive facial features that include thin eyebrows, sunken eyes, a prominent nose with a high nasal bridge, a pronounced double curve of the upper lip (Cupid's bow), a wide mouth with full lips, and widely spaced teeth. The ears are usually thick and cup-shaped. Children with Pitt-Hopkins syndrome typically have a happy, excitable demeanor with frequent smiling, laughter, and hand-flapping movements. However, they can also experience anxiety and behavioral problems. Other features of Pitt-Hopkins syndrome may include constipation and other gastrointestinal problems, an unusually small head (microcephaly), nearsightedness (myopia), eyes that do not look in the same direction (strabismus), short stature, and minor brain abnormalities. Affected individuals may also have small hands and feet, a single crease across the palms of the hands, flat feet (pes planus), or unusually fleshy pads at the tips of the fingers and toes. Males with Pitt-Hopkins syndrome may have undescended testes (cryptorchidism).","Curated_Disease_Description_Source__c":"GARD:0004372","GARD_Synonym__c":"encephalopathy, severe epileptic, with autonomic dysfunction; pths; pths - pitt-hopkins syndrome","Name":"Pitt-Hopkins syndrome","Curated_USA_Estimate__c":"5,000","estimateUsa":"5,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Chromosome 18 Registry & Research Society","Website__c":"https://www.chromosome18.org/"},{"Account_Name__c":"Alianza Iberoamericana de Enfermedades Raras o Poco Frecuentes","Website__c":"https://aliber.org/web/"},{"Account_Name__c":"Federación Mexicana de Enfermedades Raras (FEMEXER)","Website__c":"http://www.femexer.org/"},{"Account_Name__c":"Federación Española de Enfermedades Raras","Website__c":"https://enfermedades-raras.org/"},{"Account_Name__c":"Federación Colombiana de Enfermedades Raras","Website__c":"http://www.fecoer.org"},{"Account_Name__c":"Federación Argentina de Enfermedades Poco Frecuentes","Website__c":"https://fadepof.org.ar/"},{"Account_Name__c":"Asociación Todos Unidos Enfermedades Raras Uruguay","Website__c":"https://atueru.org.uy/"},{"Account_Name__c":"Pitt Hopkins España","Website__c":"https://pitthopkins.es/"},{"Account_Name__c":"Asociación Humanitaria de Enfermedades Degenerativas y Síndromes de la Infancia y Adolescencia","Website__c":"https://ahedysia.org/"},{"Account_Name__c":"Epilepsy Foundation","Website__c":"https://www.epilepsy.com/"},{"Account_Name__c":"Pitt Hopkins Research Foundation","Website__c":"https://pitthopkins.org/"},{"Account_Name__c":"Child Neurology Foundation","Website__c":"https://www.childneurologyfoundation.org/"},{"Account_Name__c":"Pitt Hopkins UK","Website__c":"https://pitthopkins.org.uk/"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Genetics","Tag_Category__c":"Cause;Disease Category;Specialist","category_description":"Genetic diseases affect the DNA, or genetic instructions, which directs how tissues, organs, and body systems function.","curated_tag_name":"Genetic diseases"},{"Tag_Name__c":"Neurology","Tag_Category__c":"Disease Category;Specialist","category_description":"Neurological diseases affect the brain, spinal cord, cranial nerves, autonomic nerves, or other peripheral nerves.","curated_tag_name":"Neurological diseases"},{"Tag_Name__c":"Congenital Abnormality","Tag_Category__c":"Disease Category","category_description":"Birth defects are structural changes present at birth that can affect almost any part of the body, including how the body looks, works, or both.","curated_tag_name":"Birth defects"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:2896"},{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:2896"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C1970431"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0004372","Source__c":"RareSource"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK100240","Source__c":"Gene Review","Xref__c":"NBK100240"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=702344008","Source__c":"C1970431; MONDO:0012589","Xref__c":"702344008"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=370910","Source__c":"C1970431","Xref__c":"MEDGEN:370910"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0060488","Source__c":"MONDO:0012589","Xref__c":"DOID:0060488"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C537403","Source__c":"MONDO:0012589","Xref__c":"C537403"},{"URL__c":"https://www.omim.org/entry/610954","Source__c":"C1970431; MONDO:0012589; ORPHA:2896","Xref__c":"OMIM:610954"},{"URL__c":"https://www.orpha.net/en/disease/detail/2896","Source__c":"C1970431; MONDO:0012589; ORPHA:2896","Xref__c":"ORPHA:2896"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C129872","Source__c":"C1970431; MONDO:0012589","Xref__c":"C129872"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C1970431","Source__c":"C1970431","Xref__c":"C1970431"},{"URL__c":"https://medlineplus.gov/genetics/condition/pitt-hopkins-syndrome","Source__c":"GARD:0004372","Xref__c":"https://medlineplus.gov/genetics/condition/pitt-hopkins-syndrome"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0012589","Source__c":"GARD:0004372","Xref__c":"MONDO:0012589"},{"URL__c":"https://secure.ssa.gov/apps10/poms.nsf/lnx/0423022877","Xref__c":"423022877"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"TCF4","GHR_URL__c":"https://medlineplus.gov/genetics/gene/tcf4","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A misalignment of the eyes so that the visual axes deviate from bifoveal fixation. The classification of strabismus may be based on a number of features including the relative position of the eyes, whether the deviation is latent or manifest, intermittent or constant, concomitant or otherwise and according to the age of onset and the relevance of any associated refractive error.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000486","HPO_Synonym__c":"Cross-eyed; Squint; Squint eyes","HPO_Name__c":"Strabismus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A foot where the longitudinal arch of the foot is in contact with the ground or floor when the individual is standing; or, in a patient lying supine, a foot where the arch is in contact with the surface of a flat board pressed against the sole of the foot by the examiner with a pressure similar to that expected from weight bearing; or, the height of the arch is reduced.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001763","HPO_Synonym__c":"Flat feet; Flat foot","HPO_Name__c":"Pes planus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An anomaly of the rhythm or depth of breathing.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002793","HPO_Synonym__c":"Abnormal pattern of respiration; Abnormal respiratory patterns; Unusual breathing patterns","HPO_Name__c":"Abnormal pattern of respiration","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000451","HPO_Synonym__c":"Triangular nasal tip; Triangular shaped tip of nose","HPO_Name__c":"Triangular nasal tip","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Slow or limited growth after birth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008897","HPO_Synonym__c":"Growth delay as children; Growth retardation as children; Postnatal growth deceleration; Postnatal growth deficiency; Postnatal growth failure","HPO_Name__c":"Postnatal growth retardation","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Absence or underdevelopment of the corpus callosum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007370","HPO_Synonym__c":"Absent/hypoplastic corpus callosum; Agenesis/hypoplastic corpus callosum; Complete or partial absence of the corpus callosum; Hypoplasia or absence of the corpus callosum; Hypoplastic or absent corpus callosum","HPO_Name__c":"Aplasia/Hypoplasia of the corpus callosum","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The distal and proximal transverse palmar creases are merged into a single transverse palmar crease.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000954","HPO_Synonym__c":"Simian crease; Simian creases; Simian line; Single flexion crease; Single palmar crease; Single palmar creases; Single transverse palmar creases; Transverse palmar crease","HPO_Name__c":"Single transverse palmar crease","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced size of the cerebral cortex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002472","HPO_Synonym__c":"Decreased volume of cerebral cortex","HPO_Name__c":"Small cerebral cortex","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Disproportionately small hand.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0200055","HPO_Synonym__c":"Disproportionately small hands; Small hand","HPO_Name__c":"Small hand","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0040019","HPO_Name__c":"Finger clinodactyly","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Abnormally small penis. At birth, the normal penis is about 3 cm (stretched length from pubic tubercle to tip of penis) with micropenis less than 2.0-2.5 cm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000054","HPO_Synonym__c":"Short penis; Small penis","HPO_Name__c":"Micropenis","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Diminished length of the neck.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000470","HPO_Synonym__c":"Decreased length of neck; Short neck","HPO_Name__c":"Short neck","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A foot for which the measured width is below the 5th centile for age; or, a foot that appears disproportionately narrow for its length.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001786","HPO_Synonym__c":"Narrow foot; Slender feet","HPO_Name__c":"Narrow foot","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Anterior positioning of the nasal root in comparison to the usual positioning for age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000426","HPO_Synonym__c":"Elevated nasal bridge; High nasal bridge; Prominent bridge of nose; Prominent nasal bridge; Prominent nasal root; Protruding bridge of nose; Protruding nasal bridge","HPO_Name__c":"Prominent nasal bridge","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An intermittent cessation of airflow at the mouth and nose during sleep is known as sleep apnea. Apneas that last at least 10 seconds are considered significant, but individuals with sleep apnea may experience apneas lasting from 20 seconds up to 2 or 3 minutes. Patients may have up to 15 events per hour of sleep.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010535","HPO_Synonym__c":"Pauses in breathing while sleeping; Sleep apnea; Sleep apnoea","HPO_Name__c":"Sleep apnea","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"An abnormality resulting from a lack of intestinal ganglion cells (i.e., an aganglionic section of bowel) that results in bowel obstruction with enlargement of the colon.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002251","HPO_Synonym__c":"Enlarged colon lacking nerve cells; Hirschsprung megacolon","HPO_Name__c":"Aganglionic megacolon","Feature_System__c":"Nervous System; Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001508","HPO_Synonym__c":"Faltering weight; FTT; Postnatal failure to thrive; Weight faltering","HPO_Name__c":"Failure to thrive","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Diminished length of a metatarsal bone, with resultant proximal displacement of the associated toe.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010743","HPO_Synonym__c":"Hypoplasia of the metatarsal bones; Hypoplastic metatarsals; Short long bone of foot; Short metatarsal bone; Short metatarsals; Shortened metatarsals","HPO_Name__c":"Short metatarsal","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Distance between nasal base and midline upper lip vermilion border more than 2 SD below the mean. Alternatively, an apparently decreased distance between nasal base and midline upper lip vermilion border.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000322","HPO_Synonym__c":"Decreased height of philtrum; Decreased length of philtrum; Decreased vertical dimension of philtrum; Vertical hypoplasia of philtrum","HPO_Name__c":"Short philtrum","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The gradual reduction in girth of the finger from proximal to distal.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001182","HPO_Synonym__c":"Distally tapering fingers; Tapered finger; Tapered fingertips; Tapering fingers","HPO_Name__c":"Tapered finger","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Head circumference below 2 standard deviations below the mean for age and sex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000252","HPO_Synonym__c":"Abnormally small cranium; Abnormally small skull; Decreased circumference of cranium; Decreased size of cranium; Decreased size of skull; Reduced head circumference; small cranium; Small head circumference","HPO_Name__c":"Microcephaly","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The palpebral fissure inclination is more than two standard deviations above the mean for age (objective); or, the inclination of the palpebral fissure is greater than typical for age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000582","HPO_Synonym__c":"Mongoloid slant; Upslanting palpebral fissures; Upward slanted palpebral fissures; Upward slanting of palpebral fissures; Upward slanting of the opening between the eyelids; Upward slanting palpebral fissures","HPO_Name__c":"Upslanted palpebral fissure","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Presence of more than two nipples.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002558","HPO_Synonym__c":"accessory mamilla; Accessory nipple; Increased nipple number","HPO_Name__c":"Supernumerary nipple","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Behavior or an act aimed at harming a person, animal, or physical property (e.g., acts of physical violence; shouting, swearing, and using harsh language; slashing someone's tires).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000718","HPO_Synonym__c":"Aggression; Aggressive behavior; Aggressiveness","HPO_Name__c":"Aggressive behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011968","HPO_Synonym__c":"Decreased oral intake; Feeding difficulties; Feeding problems; Poor feeding","HPO_Name__c":"Feeding difficulties","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The presence of a hernia in which the upper part of the stomach, i.e., mainly the gastric cardia protrudes through the diaphragmatic esophageal hiatus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002036","HPO_Synonym__c":"Hiatal hernia; Stomach hernia","HPO_Name__c":"Hiatus hernia","Feature_System__c":"Musculoskeletal System; Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Distance between the oral commissures more than 2 SD above the mean. Alternatively, an apparently increased width of the oral aperture (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000154","HPO_Synonym__c":"Broad mouth; Large mouth; Large oral aperture; Macrostomia; Wide mouth","HPO_Name__c":"Wide mouth","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001263","HPO_Synonym__c":"Delayed cognitive development; Delayed development; Delayed developmental milestones; Delayed intellectual development; Delayed milestones; Delayed psychomotor development; Developmental delay; Developmental delay in early childhood; Developmental delay, global; Developmental retardation; GDD; Lack of psychomotor development; Motor and developmental delay; Motormental retardation; Psychomotor delay; Psychomotor development deficiency; Psychomotor development failure; Psychomotor developmental delay; Retarded development; Retarded mental development; Retarded psychomotor development","HPO_Name__c":"Global developmental delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An eye that is more deeply recessed into the plane of the face than is typical.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000490","HPO_Synonym__c":"Deep set eye; Deep-set eyes; Deeply set eye; Enophthalmos; Ocular depression; Sunken eye; Sunken eyes","HPO_Name__c":"Deeply set eye","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Complete lack of speech or verbal communication in a person despite attempts to engage in conversation. Mutism as a phenomena assumes the individual has previous capacity for speech and in the pediatric population it assumes that the person is past the age of typical language development.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002300","HPO_Synonym__c":"Inability to speak; Muteness","HPO_Name__c":"Mutism","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Self-aggression.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100716","HPO_Synonym__c":"Autoagression; Self injury; Self-harm; Self-injurious behavior; Self-injurious behaviors","HPO_Name__c":"Self-injurious behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of ataxia characterized by the impairment of the ability to coordinate the movements required for normal walking. Gait ataxia is characteirzed by a wide-based staggering gait with a tendency to fall.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002066","HPO_Synonym__c":"Ataxia of gait; Ataxic gait; Inability to coordinate movements when walking","HPO_Name__c":"Gait ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An acquired language impairment of some or all of the abilities to produce or comprehend speech and to read or write.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002381","HPO_Synonym__c":"Difficulty finding words; Losing words; Loss of words","HPO_Name__c":"Aphasia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of refraction characterized by the ability to see objects nearby clearly, while objects in the distance appear blurry.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000545","HPO_Synonym__c":"Close sighted; Near sighted; Near sightedness; Nearsightedness","HPO_Name__c":"Myopia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased width of the distal segment of a finger.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011300","HPO_Synonym__c":"Broad fingertip; Broad fingertips","HPO_Name__c":"Broad fingertip","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Infrequent or difficult evacuation of feces.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002019","HPO_Synonym__c":"Constipation; Costiveness; Dyschezia","HPO_Name__c":"Constipation","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased prominence or roundness of soft tissues between zygomata and mandible.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000293","HPO_Synonym__c":"Apple cheeks; Big cheeks; Full cheeks; Increased size of cheeks; Large cheeks","HPO_Name__c":"Full cheeks","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophageal sphincter.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002020","HPO_Synonym__c":"Acid reflux; Acid reflux disease; Gastro-esophageal reflux; Gastroesophageal reflux disease; GERD; GORD; Heartburn","HPO_Name__c":"Gastroesophageal reflux","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Absence of fine and sharp appearance of brows, nose, lips, mouth, and chin, usually because of rounded and heavy features or thickened skin with or without thickening of subcutaneous and bony tissues.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000280","HPO_Synonym__c":"Coarse face; Coarse facial appearance; Coarse facial features; Coarse facies","HPO_Name__c":"Coarse facial features","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Width of the forehead or distance between the frontotemporales is more than two standard deviations below the mean (objective); or apparently narrow intertemporal region (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000341","HPO_Synonym__c":"Bitemporal narrowing; Bitemporal narrowness; Bitemporal skull narrowing; Decreased width of the forehead; Intertemporal narrowing; Narrow bitemporal diameter; Narrow bitemporal width; Narrow forehead; Temporal narrowness","HPO_Name__c":"Narrow forehead","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A deficiency or slowing down of growth pre- and postnatally.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001510","HPO_Synonym__c":"Delayed growth; Growth deficiency; Growth delay; Growth failure; Growth retardation; Poor growth; Retarded growth","HPO_Name__c":"Growth delay","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The term intellectual disability or intellectual developmental disorder is used to describe significantly sub-average intellectual and adaptive functioning based on clinical assessment and as measured by individually administered, appropriately normed, standardized and validated tests of intellectual functioning and adaptive behavior, with onset during the developmental period from infancy through adolescence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001249","HPO_Synonym__c":"Intellectual disability; Mental deficiency; Mental retardation; Mental retardation, nonspecific; Mental-retardation; Nonprogressive intellectual disability; Nonprogressive mental retardation","HPO_Name__c":"Intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Testis in inguinal canal. That is, absence of one or both testes from the scrotum owing to failure of the testis or testes to descend through the inguinal canal to the scrotum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000028","HPO_Synonym__c":"Cryptorchism; Undescended testes; Undescended testis","HPO_Name__c":"Cryptorchidism","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001250","HPO_Synonym__c":"Epileptic seizure; Seizures","HPO_Name__c":"Seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of the helix. The helix is the outer rim of the ear that extends from the insertion of the ear on the scalp (root) to the termination of the cartilage at the earlobe.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011039","HPO_Synonym__c":"Abnormal helices; Abnormality of the helix; Helix abnormal","HPO_Name__c":"Abnormal helix morphology","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"The presence of an abnormal lateral curvature of the spine.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002650","HPO_Name__c":"Scoliosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased width of the skin of vermilion border region of upper lip.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012471","HPO_Synonym__c":"Full lips; Increased volume of lip; Increased volume of lip vermillion; Plump lips; Prominent lips; Thick lips","HPO_Name__c":"Thick vermilion border","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A conspicuously happy disposition, characterized by frequent smiling and laughing, which may be contextually inappropriate or unrelated to the situation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0040082","HPO_Synonym__c":"Happy demeanor","HPO_Name__c":"Happy demeanor","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An outward deviation of the foot at the talocalcaneal or subtalar joint.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008081","HPO_Synonym__c":"Valgus foot deformity","HPO_Name__c":"Pes valgus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Positioning of the nasal tip inferior to the nasal base.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011833","HPO_Synonym__c":"Drooping nasal tip; Hooked tip of nose; Low hanging nasal tip; Nasal tip, overhanging; Overhanging nasal tip","HPO_Name__c":"Overhanging nasal tip","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Any abnormality of the palate, i.e., of roof of the mouth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000174","HPO_Synonym__c":"Abnormality of the palate; Abnormality of the roof of the mouth; Palatal anomaly; Palate abnormality","HPO_Name__c":"Abnormal palate morphology","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001053","HPO_Synonym__c":"Patchy loss of skin color","HPO_Name__c":"Hypopigmented skin patches","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Impairment of certain skills such as reading or writing, coordination, self-control, or attention that interfere with the ability to learn. The impairment is not related to a global deficiency of intelligence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001328","HPO_Name__c":"Specific learning disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Inflammation of the esophagus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100633","HPO_Synonym__c":"Inflammation of the esophagus; Oesophagitis","HPO_Name__c":"Esophagitis","Feature_System__c":"Immune System; Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Bluish discoloration of the skin of the hands or feet.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001063","HPO_Synonym__c":"Persistent blue color of hands or feet","HPO_Name__c":"Acrocyanosis","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"A type of lymphoma characterized microscopically by multinucleated Reed-Sternberg cells.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012189","HPO_Synonym__c":"Hodgkin disease; Hodgkin's lymphoma","HPO_Name__c":"Hodgkin lymphoma","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Ataxia refers to impaired coordination of voluntary muscle movement. Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001251","HPO_Synonym__c":"Cerebellar ataxia","HPO_Name__c":"Ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Lack of tooth eruption of the secondary dentition.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006352","HPO_Synonym__c":"Failure of eruption of adult teeth","HPO_Name__c":"Failure of eruption of permanent teeth","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Moderate intellectual disability (ID) is defined as a type of ID characterized by moderately sub-average adaptive functioning and intellectual functioning, with an intelligence quotient (IQ) the range of 35-49.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002342","HPO_Synonym__c":"Intellectual disability, moderate; IQ between 34 and 49; Mental retardation, moderate; Moderate mental deficiency; Moderate mental retardation","HPO_Name__c":"Moderate intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Complete lack of development of speech and language abilities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001344","HPO_Synonym__c":"Absent speech development; Lack of language development; Lack of speech; No speech development; No speech or language development; Nonverbal","HPO_Name__c":"Absent speech","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of refraction error associated with abnormal curvatures on the anterior and/or posterior surface of the cornea.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000483","HPO_Synonym__c":"Abnormal curving of the cornea or lens of the eye; Astigmatism","HPO_Name__c":"Astigmatism","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Persistent deficits in social interaction and communication and interaction as well as a markedly restricted repertoire of activity and interest as well as repetitive patterns of behavior.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000729","HPO_Synonym__c":"ASD; Pervasive developmental disorder","HPO_Name__c":"Autistic behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001252","HPO_Synonym__c":"Low muscle tone; Low or weak muscle tone; Muscle hypotonia; Muscular hypotonia","HPO_Name__c":"Hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject. This gives the appearance of an upturned nose (upturned nasal tip).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000463","HPO_Synonym__c":"Anteverted nose; Anteverted nostrils; Nasal tip, upturned; Nostrils anteverted; Upturned nares; Upturned nasal tip; Upturned nose; Upturned nostrils","HPO_Name__c":"Anteverted nares","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hyperventilation refers to an increased pulmonary ventilation rate that is faster than necessary for the exchange of gases. Hyperventilation can result from increased frequency of breathing, an increased tidal volume, or both, and leads to an excess intake of oxygen and the blowing off of carbon dioxide.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002883","HPO_Synonym__c":"Rapid breathing","HPO_Name__c":"Hyperventilation","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormal pattern in the quality, quantity, or characteristics of sleep.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002360","HPO_Synonym__c":"Difficulty sleeping; Sleep abnormality; Sleep disturbances; Sleep dysfunction; Sleep-wake disturbance; Trouble sleeping","HPO_Name__c":"Sleep disturbance","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased thickness of the helix of the ear.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000391","HPO_Synonym__c":"Thick helix","HPO_Name__c":"Thickened helices","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Abnormal alignment, positioning, or spacing of the teeth, i.e., misaligned teeth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000692","HPO_Synonym__c":"Abnormal dental position; Abnormal teeth spacing; Abnormality of alignment of teeth; Abnormality of teeth spacing; Crooked teeth; Malaligned teeth; Malposition of teeth; Malpositioned teeth; Misalignment of teeth; Teeth, malposition","HPO_Name__c":"Tooth malposition","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:2896","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Echolalia is the automatic imitative repetition of sounds, words, or phrases in the absence of explicit awareness. The repeated words or phrases are typically odd or used in a non-social manner. These can be words or phrases that the affected individual has heard or invented.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010529","HPO_Synonym__c":"Echoing another person's speech; Echologia; Echophrasia; Repeated speech","HPO_Name__c":"Echolalia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology","Congenital Abnormality"],"Specialist":["Genetics","Neurology","Epilepsy","Neurodevelopmental disabilities","Pediatrics"],"Account":["Epilepsy"]},"synonyms":["encephalopathy, severe epileptic, with autonomic dysfunction"," pths"," pths - pitt-hopkins syndrome"],"spanishId":13572,"spanishName":"sindrome-de-pitt-hopkins"}