{"Name":"Trisomy 18p","DiseaseID__c":"GARD:0005323","id":5323,"encodedName":"trisomy-18p","IsDeleted":false,"Disease_Name_Full__c":"Trisomy 18p","Xref_IDs__c":"C2931811; C538307; MEDGEN:419907; MONDO:0015740; ORPHA:1715","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":2,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":3,"Disease_Characteristics_Score__c":7,"No_of_Age_at_Onset__c":4,"Description_Source__c":"MONDO:0015740","Disease_Description__c":"A rare partial trisomy of the short arm of chromosome 18 manifesting with a highly variable clinical phenotype which may include variable developmental delay and intellectual disability, epilepsy, and non-specific dysmorphic features, among others.","GARD_Name__c":"Trisomy 18p","GARD_Synonym__c":"duplication 18p; duplication of the short arm of chromosome 18; trisomy of the short arm of chromosome 18; trisomy type 18p","Curated_Disease_Description_Source__c":"GARD:0005323","Curated_Disease_Description__c":"Trisomy 18p is a rare chromosome abnormality in which there are three copies of the short (p) arm of chromosome 18 in each cell, rather than the usual two copies. The severity of the condition and the signs and symptoms depend on the size and location of the duplicated genetic material and which genes are involved. A complete duplication of the p arm of chromosome 18 is rare. Reported features include: intellectual disability, foot or hand anomalies, distinctive facial features, and epilepsy. Trisomy 18p may occur sporadically in a family with no previous history or may be inherited from a parent with the same duplication or another chromosome abnormality, such as a balanced translocation.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"at a variety of ages","SourceID__c":"ORPHA:1715","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0015740","ORPHANET_ID__c":"ORPHA:1715","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de trisomía 18p","Spanish_Description_Source__c":"ORPHA:1715","Spanish_Description__c":"Es una trisomía parcial poco frecuente del brazo corto del cromosoma 18 que se manifiesta con un fenotipo clínico altamente variable que puede incluir diversos grados de retraso psicomotor y discapacidad intelectual, epilepsia y rasgos dismórficos inespecíficos, entre otras.","Spanish_Disease_Name__c":"síndrome de trisomía 18p","Spanish_GARD_Synonym__c":"duplicación 18p; duplicación del brazo corto del cromosoma 18; trisomía del brazo corto del cromosoma 18","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":"Trisomy 18p is a rare chromosome abnormality in which there are three copies of the short (p) arm of chromosome 18 in each cell, rather than the usual two copies. The severity of the condition and the signs and symptoms depend on the size and location of the duplicated genetic material and which genes are involved. A complete duplication of the p arm of chromosome 18 is rare. Reported features include: intellectual disability, foot or hand anomalies, distinctive facial features, and epilepsy. Trisomy 18p may occur sporadically in a family with no previous history or may be inherited from a parent with the same duplication or another chromosome abnormality, such as a balanced translocation.","Curated_Disease_Description_Source__c":"GARD:0005323","GARD_Synonym__c":"duplication 18p; duplication of the short arm of chromosome 18; trisomy of the short arm of chromosome 18; trisomy type 18p","Name":"Trisomy 18p","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Chromosome 18 Registry & Research Society","Website__c":"https://www.chromosome18.org/"},{"Account_Name__c":"Chromosome Disorder Outreach","Website__c":"https://chromodisorder.org/"},{"Account_Name__c":"Unique","Website__c":"https://rarechromo.org/"},{"Account_Name__c":"Trisomy 18 Foundation","Website__c":"https://www.trisomy18.org/"},{"Account_Name__c":"Hope For Trisomy","Website__c":"https://www.hopefortrisomy13and18.org/"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Chromosomal Anomaly","Tag_Category__c":"Account;Cause","curated_tag_name":"Chromosome disorders"},{"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":"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":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:1715"},{"Age_At_Onset__c":"Adolescent","Provided_By__c":"ORPHA:1715"},{"Age_At_Onset__c":"Childhood","Provided_By__c":"ORPHA:1715"},{"Age_At_Onset__c":"Adult","Provided_By__c":"ORPHA:1715"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C538307","Source__c":"MONDO:0015740","Xref__c":"C538307"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=419907","Source__c":"C2931811","Xref__c":"MEDGEN:419907"},{"URL__c":"https://www.orpha.net/en/disease/detail/1715","Source__c":"C2931811; MONDO:0015740; ORPHA:1715","Xref__c":"ORPHA:1715"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C2931811","Source__c":"C2931811","Xref__c":"C2931811"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0015740","Source__c":"GARD:0005323","Xref__c":"MONDO:0015740"}],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Inclination of the anterior surface of the forehead from the vertical more than two standard deviations above the mean (objective); or apparently excessive posterior sloping of the forehead in a lateral view.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000340","HPO_Synonym__c":"Inclined forehead; Posteriorly sloping forehead; Receding forehead; Sloping forehead","HPO_Name__c":"Sloping forehead","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A fixed reduction in the vertical distance between the upper and lower eyelids with short palpebral fissures.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000581","HPO_Synonym__c":"Decreased width of palpebral fissure; Narrow opening between the eyelids","HPO_Name__c":"Blepharophimosis","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Developmental hypoplasia of the mandible.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000347","HPO_Synonym__c":"Decreased size of lower jaw; Decreased size of mandible; Hypoplasia of lower jaw; Hypoplasia of mandible; Hypoplastic mandible; Hypoplastic mandible condyle; Hypotrophic lower jaw; Hypotrophic mandible; Little lower jaw; Little mandible; Lower jaw deficiency; Lower jaw hypoplasia; Mandibular deficiency; Mandibular hypoplasia; Mandibular micrognathia; Micrognathia of lower jaw; Micromandible; Robin mandible; Severe hypoplasia of mandible; Small jaw; Small lower jaw; Small mandible; Underdevelopment of lower jaw; Underdevelopment of mandible","HPO_Name__c":"Micrognathia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","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:1715","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the skeleton of foot.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001760","HPO_Synonym__c":"Abnormal feet structure; Abnormality of the feet; Abnormality of the foot; Foot deformities; Foot deformity","HPO_Name__c":"Abnormal foot morphology","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Mild intellectual disability (ID) is defined as a type of ID characterized by mildly sub-average adaptive functioning and intellectual functioning, with an intelligence quotient (IQ) the range of 50-69.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001256","HPO_Synonym__c":"Intellectual disability, mild; Mental retardation, borderline-mild; Mild and nonprogressive mental retardation; Mild mental retardation","HPO_Name__c":"Mild intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A height below that which is expected according to age and sex norms. Although there is no universally accepted definition of short stature, many refer to \\\"short stature\\\" as height more than 2 standard deviations below the mean for age and sex (or below the 3rd percentile for age and sex dependent norms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004322","HPO_Synonym__c":"Decreased body height; Height less than 3rd percentile; Short stature; Small stature; Stature below 3rd percentile","HPO_Name__c":"Short stature","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Attention deficit hyperactivity disorder (ADHD) manifests at age 2-3 years or by first grade at the latest. The main symptoms are distractibility, impulsivity, hyperactivity, and often trouble organizing tasks and projects, difficulty going to sleep, and social problems from being aggressive, loud, or impatient.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007018","HPO_Synonym__c":"ADHD; Attention deficit; Attention deficit disorder; Attention deficit-hyperactivity disorder; Attention deficits; Childhood attention deficit/hyperactivity disorder","HPO_Name__c":"Attention deficit hyperactivity disorder","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A neurological anomaly with gross overeating associated with an abnormally strong desire or need to eat.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002591","HPO_Synonym__c":"Hyperphagia; Voracious appetite","HPO_Name__c":"Polyphagia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased breadth of the nasal bridge (and with it, the nasal root).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000431","HPO_Synonym__c":"Broad nasal bridge; Broad nasal root; Broadened nasal bridge; Increased breadth of bridge of nose; Increased breadth of nasal bridge; Increased width of bridge of nose; Increased width of nasal bridge; Nasal bridge broad; Nasal bridge, wide; Wide bridge of nose; Wide nasal bridge; Widened nasal bridge","HPO_Name__c":"Wide nasal bridge","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A rudimentary tag of skin often containing ear tissue including a core of cartilage and located just anterior to the auricle (outer part of the ear).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000384","HPO_Synonym__c":"Ear tag; Periauricular skin tag; Preauricular acrochordon; Preauricular fibroepithelial polyp; Preauricular skin tags; Preauricular tag; Preauricular tags","HPO_Name__c":"Preauricular skin tag","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An anomaly of a finger.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001167","HPO_Synonym__c":"Abnormalities of the fingers; Abnormality of finger","HPO_Name__c":"Abnormal finger morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","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:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Facial nerve palsy is a dysfunction of cranial nerve VII (the facial nerve) that results in inability to control facial muscles on the affected side with weakness of the muscles of facial expression and eye closure. This can either be present in unilateral or bilateral form.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010628","HPO_Synonym__c":"Bell's palsy; Cranial nerve VII palsy; Facial nerve palsy; Facial nerve paralysis; Facial palsy, unilateral or bilateral; Seventh cranial nerve palsy; VII th cranial nerve palsy","HPO_Name__c":"Facial palsy","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"The presence of a high and narrow palate.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002705","HPO_Synonym__c":"Gothic palate; High narrow palate; High vaulted palate; High, narrow palate; Narrow and high arched palate; Narrow, high-arched palate; Narrow, high-arched roof of mouth; Narrow, highly arched palate; Narrow, highly arched roof of mouth","HPO_Name__c":"High, narrow palate","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Height of the vermilion of the medial part of the lip more than 2 SD below the mean, or apparently reduced height of the vermilion of the lip in the frontal view. The vermilion is the red part of the lips (and confusingly, the vermilion itself is also often referred to as being equivalent the lips).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000233","HPO_Synonym__c":"Decreased volume of lip; Decreased volume of lip vermillion; Thin lips; Thin vermillion","HPO_Name__c":"Thin vermilion border","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of the pinna, which is also referred to as the auricle or external ear.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000377","HPO_Synonym__c":"Abnormal form of ears; Abnormally shaped ears; Auricular malformation; Deformed auricles; Deformed ears; Dysplastic ears; Malformation of auricle; Malformed auricles; Malformed ears; Malformed external ears; Minor malformation of the auricles; Poorly defined conchae","HPO_Name__c":"Abnormal pinna morphology","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Pyloric stenosis, also known as infantile hypertrophic pyloric stenosis, is an uncommon condition in infants characterized by abnormal thickening of the pylorus muscles in the stomach leading to gastric outlet obstruction. Clinically infants are well at birth. Then, at 3 to 6 weeks of age, the infants present with projectile vomiting, potentially leading to dehydration and weight loss.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002021","HPO_Synonym__c":"Infantile hypertrophic pyloric stenosis; Pylorus stenosis","HPO_Name__c":"Pyloric stenosis","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Absence of 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:0008689","HPO_Synonym__c":"Cryptorchidism, bilateral","HPO_Name__c":"Bilateral cryptorchidism","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Distance between the inner canthi more than two standard deviations above the mean (objective); or, apparently increased distance between the inner canthi.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000506","HPO_Synonym__c":"Corners of eye widely separated; Dystopia canthorum; Increased distance between medial canthi; Increased intercanthal distance","HPO_Name__c":"Telecanthus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased height of the central portion of the eyebrow, forming a crescent, semicircular, or inverted U shape.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002553","HPO_Synonym__c":"Arched eyebrows; Broad, arched eyebrows; High, rounded eyebrows; High-arched eyebrows; Highly arched eyebrow; Thick, flared eyebrows","HPO_Name__c":"Highly arched eyebrow","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Any structural anomaly of the heart and blood vessels.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030680","HPO_Synonym__c":"Abnormality of cardiovascular system morphology; Cardiovascular malformations","HPO_Name__c":"Abnormal cardiovascular system morphology","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Muscular hypotonia (abnormally low muscle tone) manifesting in the neonatal period.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001319","HPO_Synonym__c":"Hypotonia, in neonatal onset; Hypotonia, neonatal; Low muscle tone, in neonatal onset","HPO_Name__c":"Neonatal hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011800","HPO_Synonym__c":"Decreased size of midface; Flat midface; Hypoplasia of midface; Midface deficiency; Midface hypoplasia; Midface retrusion; Midface, flat; Retrusive midface; Underdevelopment of midface","HPO_Name__c":"Midface retrusion","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Distance between the commissures of the mouth more than 2 SD below the mean. Alternatively, an apparently decreased width of the oral aperture (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000160","HPO_Synonym__c":"Microstomia; Narrow mouth; Small mouth; Small oral aperture","HPO_Name__c":"Narrow mouth","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Thinned, deficient, or excessively arched ala nasi.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000430","HPO_Synonym__c":"Ala nasi, underdeveloped; Alar cartilage hypoplasia; Decreased size of nasal alae; Hypoplastic alae nasae; Hypoplastic alae nasi; Hypoplastic alar cartilage; Hypoplastic alar nasae; Hypoplastic nares; Hypoplastic nasal alae; Hypoplastic nasal wings; Hypoplastic nostrils; Nasal cartilage hypoplasia; Small nasal alae; Thin hypoplastic alae nasi; Underdeveloped tissue around nostril","HPO_Name__c":"Underdeveloped nasal alae","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormal restriction of fetal growth with fetal weight below the tenth percentile for gestational age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001511","HPO_Synonym__c":"Fetal growth restriction; FGR; In utero growth retardation; Intrauterine growth failure; Intrauterine growth restriction; Intrauterine growth retardation, IUGR; Intrauterine retardation; IUGR; Prenatal growth deficiency; Prenatal growth failure; Prenatal growth retardation; Prenatal onset growth retardation; Prenatal-onset growth retardation; Small for gestational age infant","HPO_Name__c":"Intrauterine growth retardation","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:1715","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Interpupillary distance less than 2 SD below the mean (alternatively, the appearance of an decreased interpupillary distance or closely spaced eyes).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000601","HPO_Synonym__c":"Abnormally close eyes; Closely spaced eyes; Decreased distance between eye sockets; Decreased distance between eyes; Decreased interpupillary distance; Decreased orbital separation; Ocular hypotelorism","HPO_Name__c":"Hypotelorism","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Account":["Chromosomal Anomaly"],"Cause":["Chromosomal Anomaly","Genetics"],"Disease Category":["Genetics","Congenital Abnormality"],"Specialist":["Genetics","Pediatrics"]},"synonyms":["duplication 18p"," duplication of the short arm of chromosome 18"," trisomy of the short arm of chromosome 18"," trisomy type 18p"]}