Gapo syndrome is caused by genetic mutations, also known as pathogenic variants. Genetic mutations can be hereditary, when parents pass them down to their children, or they may occur randomly when cells are dividing. Genetic mutations may also result from contracted viruses, environmental factors, such as UV radiation from sunlight exposure, or a combination of any of these. Learn more about genetic diseases from the National Library of Medicine (NLM).
If you suspect you may have this disease, you may want to start collecting your family health history. Information such as other family members who have had similar symptoms, when their/your symptoms first appeared, or exposures to any potential disease-causing environmental factors should be discussed with your medical team. This tool from the Surgeon General can help you collect your family health history.
Can This Disease Be Passed Down From Parent to Child?
Yes. It is possible for a biological parent to pass down genetic mutations that cause or increase the chances of getting this disease to their child. This is known as inheritance. Knowing whether other family members have previously had this disease, also known as family health history, can be very important information for your medical team. This tool from the Surgeon General can help you collect your family health history.
There are multiple ways, or patterns, a disease can be inherited depending on the gene(s) involved. Based on GARD's current data, this disease can be inherited in the following pattern(s):
Autosomal Recessive
Autosomal means the gene involved is located on one of the numbered chromosomes. Recessive means that a child must inherit two copies of the mutated gene, one from each biological parent, to be affected by the disease. A carrier is a person who only has one copy of the genetic mutation. A carrier usually doesn't show any symptoms of the disease.
If both biological parents are carriers, there is a 25% their child inherits both copies of the mutated gene and is affected by the disease. Additionally, there is a 50% chance their child inherits only one copy of the mutated gene and is a carrier.
Symptoms of this disease may start to appear as a Newborn.
The age symptoms may begin to appear differs between diseases. Symptoms may begin in a single age range, or during several age ranges. The symptoms of some diseases may begin at any age. Knowing when symptoms may have appeared can help medical providers find the correct diagnosis.
Prenatal
Before Birth
Newborn Selected
Birth-4 weeks
Infant
1-23 months
Child
2-11 years
Adolescent
12-18 years
Adult
19-65 years
Older Adult
65+ years
Symptoms may start to appear as a Newborn.
Symptoms
The types of symptoms experienced, and their intensity, may vary among people with this disease. Your experience may be different from others. Consult your health care team for more information.
The following describes the symptom(s) associated with this disease along with the corresponding body system(s), description, synonyms, and frequency (Note: Not all possible symptoms may be listed):
Skin System Skin System
53 Symptoms
53 Symptoms
53 Symptoms
Body Systems
Symptoms related to this disease may affect different systems of the body. Use the 'Filter and Sort' function to learn more about which body system(s) are affected by this disease and their associated symptom(s).
Medical Term
Description and Synonyms
Frequency
Abnormal cerebral vascular morphology
An anomaly of the cerebral blood vessels.
Synonyms:Abnormality of the cerebral blood vessels; Abnormality of the cerebral vasculature
Frequency
Uncommon
Frequent
Frequent
Always
Abnormal clavicle morphology
Any abnormality of the clavicles (collar bones).
Synonyms:Abnormal clavicles; Abnormal collarbone; Abnormality of the clavicle
Frequency
Uncommon
Frequent
Frequent
Always
Abnormal form of the vertebral bodies
Abnormal morphology of vertebral body.
Synonyms:Abnormally shaped vertebrae
Frequency
Uncommon
Frequent
Frequent
Always
Abnormal palate morphology
Any abnormality of the palate, i.e., of roof of the mouth.
Synonyms:Abnormality of the roof of the mouth; Palatal anomaly; Palate abnormality; Abnormality of the palate
Frequency
Uncommon
Frequent
Frequent
Always
Abnormal thorax morphology
Any abnormality of the thorax (the region of the body formed by the sternum, the thoracic vertebrae and the ribs).
Synonyms:Abnormality of the chest; Abnormality of the thorax; Structural abnormality of the chest wall
Frequency
Uncommon
Frequent
Frequent
Always
Abnormality of pelvic girdle bone morphology
An abnormality of the bony pelvic girdle, which is a ring of bones connecting the vertebral column to the femurs.
Synonyms:Abnormal shape of pelvic girdle bone
Frequency
Uncommon
Frequent
Frequent
Always
Abnormality of the metaphysis
An abnormality of one or more metaphysis, i.e., of the somewhat wider portion of a long bone that is adjacent to the epiphyseal growth plate and grows during childhood.
Synonyms:Abnormality of the wide portion of a long bone
Frequency
Uncommon
Frequent
Frequent
Always
Alopecia
A noncongenital process of hair loss, which may progress to partial or complete baldness.
Synonyms:Hair loss
Frequency
Uncommon
Very frequent
Very frequent
Always
Amenorrhea
Absence of menses for an interval of time equivalent to a total of more than (or equal to) 3 previous cycles or 6 months.
Synonyms:Abnormal absence of menstruation
Frequency
Uncommon
Occasional
Occasional
Always
Anteverted nares
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).
Lack of symmetry between the left and right halves of the thorax.
Synonyms:Asymmetric chest
Frequency
Uncommon
Occasional
Occasional
Always
Atherosclerosis
A condition characterized by patchy atheromas or atherosclerotic plaques which develop in the walls of medium-sized and large arteries and can lead to arterial stenosis with reduced or blocked blood flow.
Synonyms:Atherosclerotic cardiovascular disease; Narrowing and hardening of arteries
Frequency
Uncommon
Occasional
Occasional
Always
Broad forehead
Width of the forehead or distance between the frontotemporales is more than two standard deviations above the mean (objective); or apparently increased distance between the two sides of the forehead.
Synonyms:Bitemporal widening; Broad forehead; Increased bitemporal dimension; Increased bitemporal width; Increased width of the forehead; Intertemporal widening; Wide forehead
Frequency
Uncommon
Very frequent
Very frequent
Always
Choanal atresia
Absence or abnormal closure of the choana (the posterior nasal aperture). Most embryologists believe that posterior choanal atresia results from a failure of rupture between the 35th and 38th day of fetal life of the partition which separates the bucconasal or buccopharyngeal membranes. The resultant choanal atresia may be unilateral or bilateral, bony or membranous, complete or incomplete. In over 90 per cent of cases the obstruction is bony, while in the remainder it is membranous. The bony type of atresia is commonly located 1-2 mm. anterior to the posterior edge of the hard palate, and the osseous septum varies in thickness from 1 to 10 mm. In the membranous form of choanal atresia the obstruction usually occurs further posteriorly. In approximately one third of cases the atresia is bilateral.
Synonyms:Blockage of the rear opening of the nasal cavity
Frequency
Uncommon
Occasional
Occasional
Always
Decreased skull ossification
A reduction in the magnitude or amount of ossification of the skull.
Synonyms:Decreased bone formation of skull; Deficient skull ossification; Hypoossification of skull; Ossification defect of skull; Poorly mineralized skull; Poorly ossified skull; Poorly ossified skull bones
Frequency
Uncommon
Occasional
Occasional
Always
Delayed eruption of teeth
Delayed tooth eruption, which can be defined as tooth eruption more than 2 SD beyond the mean eruption age.
Synonyms:Delayed dental development; Delayed dental eruption; Delayed eruption; Delayed eruption of teeth; Delayed teeth eruption; Delayed tooth eruption; Eruption, delayed; Late eruption of teeth; Late tooth eruption
Frequency
Uncommon
Very frequent
Very frequent
Always
Delayed skeletal maturation
A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.
Synonyms:Delayed bone age; Delayed bone age before puberty; Delayed bone maturation; Delayed skeletal development; Retarded bone age; Skeletal maturation retardation
Frequency
Uncommon
Very frequent
Very frequent
Always
Depressed nasal bridge
Posterior positioning of the nasal root in relation to the overall facial profile for age.
Pain during menstruation that interferes with daily activities.
Synonyms:Painful menstruation
Frequency
Uncommon
Occasional
Occasional
Always
Early balding
Loss of scalp hair at an earlier than normal age.
Synonyms:Early balding
Frequency
Uncommon
Very frequent
Very frequent
Always
Everted lower lip vermilion
An abnormal configuration of the lower lip such that it is turned outward i.e., everted, with the Inner aspect of the lower lip vermilion (normally opposing the teeth) being visible in a frontal view.
A hemangioma is a benign tumor characterized by blood-filled spaces lined by benign endothelial cells. A hemangioma characterized by large endothelial spaces (caverns) is called a cavernous hemangioma (in contrast to a hemangioma with small endothelial spaces, which is called capillary hemangioma).
Synonyms:Strawberry mark
Frequency
Uncommon
Occasional
Occasional
Always
High forehead
An abnormally increased height of the forehead.
Synonyms:High forehead
Frequency
Uncommon
Very frequent
Very frequent
Always
Hyperextensible skin
A condition in which the skin can be stretched beyond normal, and then returns to its initial position.
Interpupillary distance more than 2 SD above the mean (alternatively, the appearance of an increased interpupillary distance or widely spaced eyes).
Synonyms:Excessive orbital separation; Increased distance between eye sockets; Increased distance between eyes; Increased interpupillary distance; Ocular hypertelorism; Wide-set eyes; Widely spaced eyes; Widened interpupillary distance
Frequency
Uncommon
Very frequent
Very frequent
Always
Hypogonadism
A decreased functionality of the gonad.
Synonyms:Decreased activity of gonads
Frequency
Uncommon
Occasional
Occasional
Always
Hypopigmented skin patches
Synonyms:Patchy loss of skin color
Frequency
Uncommon
Occasional
Occasional
Always
Increased intracranial pressure
An increase of the pressure inside the cranium (skull) and thereby in the brain tissue and cerebrospinal fluid.
Synonyms:Intracranial hypertension; Intracranial pressure elevation; Rise in pressure inside skull
Frequency
Uncommon
Occasional
Occasional
Always
Joint hyperflexibility
Increased mobility and flexibility in the joint due to the tension in tissues such as ligaments and muscles.
Synonyms:Joints move beyond expected range of motion
Frequency
Uncommon
Very frequent
Very frequent
Always
Keratoconus
A cone-shaped deformity of the cornea characterized by the presence of corneal distortion secondary to thinning of the apex.
Synonyms:Bulging cornea; Conical cornea
Frequency
Uncommon
Frequent
Frequent
Always
Long philtrum
Distance between nasal base and midline upper lip vermilion border more than 2 SD above the mean. Alternatively, an apparently increased distance between nasal base and midline upper lip vermilion border.
Synonyms:Elongated philtrum; Increased height of philtrum; Increased length of philtrum; Increased vertical dimension of philtrum; Vertical hyperplasia of philtrum
Frequency
Uncommon
Very frequent
Very frequent
Always
Low-set ears
Upper insertion of the ear to the scalp below an imaginary horizontal line drawn between the inner canthi of the eye and extending posteriorly to the ear.
Synonyms:Low set ears; Low-set ears; Low-set pinnae; Lowset ears; Melotia
Frequency
Uncommon
Very frequent
Very frequent
Always
Mandibular prognathia
Abnormal prominence of the chin related to increased length of the mandible.
Synonyms:Big lower jaw; Big mandible; Enlarged mandible; Enlargement of mandible; Hyperplasia of lower jaw; Increased projection of lower jaw; Increased projection of mandible; Increased size of lower jaw; Large lower jaw; Large mandible; Lower jaw excess; Lower jaw hyperplasia; Macromandible; Mandible prognathism; Mandibular excess; Mandibular hyperplasia; Mandibular macrognathia; Mandibular prognathism; Prognathia; Prognathism; Prominent chin; Prominent jaw; Prominent lower jaw; Prominent mandible; Relative mandibular prognathism
Frequency
Uncommon
Frequent
Frequent
Always
Micrognathia
Developmental hypoplasia of the mandible.
Synonyms: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; Lower jaw retrusion; Mandibular deficiency; Mandibular hypoplasia; Mandibular micrognathia; Mandibular retrognathia; Mandibular retrusion; 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
Frequency
Uncommon
Very frequent
Very frequent
Always
Midface retrusion
Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle.
Synonyms:Decreased size of midface; Flat midface; Hypoplasia of midface; Midface deficiency; Midface hypoplasia; Midface retrusion; Midface, flat; Retrusive midface; Underdevelopment of midface
Frequency
Uncommon
Very frequent
Very frequent
Always
Myopia
An abnormality of refraction characterized by the ability to see objects nearby clearly, while objects in the distance appear blurry.
Synonyms:Close sighted; Near sighted; Near sightedness; Nearsightedness
Reduced count of spermatozoa in the semen, defined as a sperm count below 20 million per milliliter semen.
Synonyms:Low sperm count
Frequency
Uncommon
Occasional
Occasional
Always
Optic atrophy
Atrophy of the optic nerve. Optic atrophy results from the death of the retinal ganglion cell axons that comprise the optic nerve and manifesting as a pale optic nerve on fundoscopy.
A height below that which is expected according to age and gender 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 gender (or below the 3rd percentile for age and gender dependent norms).
Synonyms:Decreased body height; Height less than 3rd percentile; Short stature; Small stature; Stature below 3rd percentile
Frequency
Uncommon
Very frequent
Very frequent
Always
Skin tags
Cutaneous skin tags also known as acrochorda or fibroepithelial polyps are small benign tumours that may either form secondarily over time primarily in areas where the skin forms creases, such as the neck, armpit or groin or may also be present at birth, in which case they usually occur in the periauricular region.
Synonyms:Acrochorda
Frequency
Uncommon
Frequent
Frequent
Always
Sparse eyebrow
Decreased density/number of eyebrow hairs.
Synonyms:Hypotrichosis of eyebrow; Sparse eyebrow; Sparse eyebrows
Frequency
Uncommon
Very frequent
Very frequent
Always
Sparse eyelashes
Decreased density/number of eyelashes.
Synonyms:Hypotrichosis of eyelashes; Partial absence of eyelashes; Scant eyelashes; Scanty eyelashes; Sparse eyelashes; Thin eyelashes
Frequency
Uncommon
Very frequent
Very frequent
Always
Thick nasal alae
Increase in bulk of the ala nasi.
Synonyms:Ala nasi, thick; Thickening of the alae nasi
Frequency
Uncommon
Very frequent
Very frequent
Always
Umbilical hernia
Protrusion of abdominal contents through a defect in the abdominal wall musculature around the umbilicus. Skin and subcutaneous tissue overlie the defect.
Synonyms:Umbilical hernias
Frequency
Uncommon
Frequent
Frequent
Always
Underdeveloped supraorbital ridges
Flatness of the supraorbital portion of the frontal bones.
Synonyms:Depressed supraorbital margins; Depressed supraorbital ridge; Flat supraorbital margins; Flat supraorbital ridge; Flattened bony protrusion above eyes; Hypoplasia of supraorbital margins; Hypoplasia of the supraorbital ridges; Hypoplastic supraorbital ridges; Shallow orbital ridges; Shallow supraorbital ridge
Frequency
Uncommon
Very frequent
Very frequent
Always
Visual impairment
Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery.
Synonyms:Impaired vision; Loss of eyesight; Poor vision; Visual impairment
Frequency
Uncommon
Frequent
Frequent
Always
Diagnostic Journey
On average, it takes more than six years to receive an accurate rare disease diagnosis. Many primary care providers (PCPs) may not be familiar with rare diseases, and you may need to see multiple specialists to reach the correct diagnosis. However, advocating for yourself with your healthcare team may help speed your time to diagnosis. To combat common challenges, be prepared:
Find disease-specific information to discuss with your healthcare providers.
Ask for diagnostic tests.
Request referrals to specialists.
Knowing where to start your diagnostic journey and how to navigate the next steps are critical to speeding your time to diagnosis
Your Diagnostic Team
How can a diagnostic team help?
Establishing care with a dedicated primary care provider (PCP) is an important early step in your rare disease journey. A PCP can help improve care and shorten the time to diagnosis by providing referrals to the appropriate specialists. These specialists, with advanced training in different body systems or types of diseases, can offer the specialized diagnostic procedures you need.
Is it time to find a multidisciplinary care center?
If you've visited your PCP, met with specialists, and undergone the recommended tests, but still do not have a confirmed diagnosis, it may be time to visit a multidisciplinary care center. Multidisciplinary care centers are usually teaching, university, or research hospitals that have teams of medical experts and specialists working together in the same location. This means a wide range of diagnostic tests and clinical knowledge are available at one facility, which can help increase communication and collaboration among your care team. The additional resources often available at multidisciplinary centers may help speed the time to diagnosis for rare diseases.
Is it time to find a multidisciplinary care center?
If you've visited your PCP, met with specialists, and undergone the recommended tests, but still do not have a confirmed diagnosis, it may be time to visit a multidisciplinary care center. Multidisciplinary care centers are usually teaching, university, or research hospitals that have teams of medical experts and specialists working together in the same location. This means a wide range of diagnostic tests and clinical knowledge are available at one facility, which can help increase communication and collaboration among your care team. The additional resources often available at multidisciplinary centers may help speed the time to diagnosis for rare diseases.
If a diagnosis remains unknown despite extensive efforts by your PCP and specialists, it can be challenging to know what kind of expert you may need or where to find one. A rare disease expert is a care provider that has knowledge or training on specific disease(s), but there may only be a few experts in your state, region, or country. Rare disease experts may work at large research or teaching hospitals. In complex cases, coordinating with a network of experts can help your care provider find the right diagnosis. Contact a GARD Information Specialist for help finding an expert.
You can ask your care providers for help finding an expert or use directory tools to search for experts near you. The following organization(s) may maintain a list of experts or expert centers for people living with Gapo syndrome:
If a diagnosis remains unknown despite extensive efforts by your PCP and specialists, it can be challenging to know what kind of expert you may need or where to find one. A rare disease expert is a care provider that has knowledge or training on specific disease(s), but there may only be a few experts in your state, region, or country. Rare disease experts may work at large research or teaching hospitals. In complex cases, coordinating with a network of experts can help your care provider find the right diagnosis. Contact a GARD Information Specialist for help finding an expert.
You can ask your care providers for help finding an expert or use directory tools to search for experts near you. The following organization(s) may maintain a list of experts or expert centers for people living with Gapo syndrome:
Patient organizations can help patients and families connect. They build public awareness of the disease and are a driving force behind research to improve patients' lives. They may offer online and in-person resources to help people live well with their disease. Many collaborate with medical experts and researchers.
Services of patient organizations differ, but may include:
Ways to connect to others and share personal stories
Easy-to-read information
Up-to-date treatment and research information
Patient registries
Lists of specialists or specialty centers
Financial aid and travel resources
Please note: GARD provides organizations for informational purposes only and not as an endorsement of their services. Please contact an organization directly if you have questions about the information or resources it provides.
Clinical studies are part of clinical research and play an important role in medical advances, including for rare diseases. Through clinical studies, researchers may ultimately uncover better ways to treat, prevent, diagnose, and understand human diseases.
What Are Clinical Studies?
Clinical studies are medical research involving people as participants. There are two main types of clinical studies:
Clinical trials determine if a new test or treatment for a disease is effective and safe by comparing groups receiving different tests/treatments.
Observational studies involve recording changes over time among a specific group of people in their natural settings.
People participate in clinical trials for many reasons. People with a disease may participate to receive the newest possible treatment and additional care from clinical study staff as well as to help others living with the same or similar disease. Healthy volunteers may participate to help others and to contribute to moving science forward.
To find the right clinical study we recommend you consult your doctors, other trusted medical professionals, and patient organizations. Additionally, you can use ClinicalTrials.gov to search for clinical studies by disease, terms, or location.
What if There Are No Available Clinical Studies?
ResearchMatch helps connect people interested in research studies with researchers from top medical centers across the United States. Anyone from the U.S. can register with this free program funded by NIH. Researchers from participating institutions use the database to search for and invite patients or healthy volunteers who meet their study criteria to participate.
Join the All of Us Research Program!
The All of Us Research Program is inviting 1 million people from all backgrounds across the U.S. to help build one of the most diverse health databases in history. Researchers will use the data to learn how our biology, lifestyle, and environment affect health. This may one day help them find ways to treat and prevent diseases.
What Are Clinical Studies?
Clinical studies are medical research involving people as participants. There are two main types of clinical studies:
Clinical trials determine if a new test or treatment for a disease is effective and safe by comparing groups receiving different tests/treatments.
Observational studies involve recording changes over time among a specific group of people in their natural settings.
People participate in clinical trials for many reasons. People with a disease may participate to receive the newest possible treatment and additional care from clinical study staff as well as to help others living with the same or similar disease. Healthy volunteers may participate to help others and to contribute to moving science forward.
To find the right clinical study we recommend you consult your doctors, other trusted medical professionals, and patient organizations. Additionally, you can use ClinicalTrials.gov to search for clinical studies by disease, terms, or location.People participate in clinical trials for many reasons. People with a disease may participate to receive the newest possible treatment and additional care from clinical study staff as well as to help others living with the same or similar disease. Healthy volunteers may participate to help others and to contribute to moving science forward.
To find the right clinical study we recommend you consult your doctors, other trusted medical professionals, and patient organizations. Additionally, you can use ClinicalTrials.gov to search for clinical studies by disease, terms, or location.
Read More
Read Less
What if There Are No Available Clinical Studies?
ResearchMatch helps connect people interested in research studies with researchers from top medical centers across the United States. Anyone from the U.S. can register with this free program funded by NIH. Researchers from participating institutions use the database to search for and invite patients or healthy volunteers who meet their study criteria to participate.
Join the All of Us Research Program!
The All of Us Research Program is inviting 1 million people from all backgrounds across the U.S. to help build one of the most diverse health databases in history. Researchers will use the data to learn how our biology, lifestyle, and environment affect health. This may one day help them find ways to treat and prevent diseases.
ClinicalTrials.gov, an affiliate of NIH, provides current information on clinical research studies in the United States and abroad. Talk to a trusted doctor before choosing to participate in any clinical study. We recommend checking this site often and searching for studies with related terms/synonyms to improve results.
Contact a GARD Information Specialist if you need help finding more information on this rare disease or available clinical studies. Please note that GARD cannot enroll individuals in clinical studies.
Use the contact form to send your questions to a GARD Information Specialist.
Please allow 2 to 10 business days for us to respond.
ClinicalTrials.gov, an affiliate of NIH, provides current information on clinical research studies in the United States and abroad. Talk to a trusted doctor before choosing to participate in any clinical study. We recommend checking this site often and searching for studies with related terms/synonyms to improve results.
Contact a GARD Information Specialist if you need help finding more information on this rare disease or available clinical studies. Please note that GARD cannot enroll individuals in clinical studies.
Use the contact form to send your questions to a GARD Information Specialist.
Please allow 2 to 10 business days for us to respond.
GARD collects data from a variety of sources to populate its website and provide accurate and reliable information on rare diseases.
GARD uses data collected from Orphanet and Online Mendelian Inheritance in Man (OMIM) to interpret and provide information on rare diseases. This includes names, synonyms, genes, symptom frequency, population estimates and more.
Orphanet is an online database of rare diseases and orphan drugs that provides aggregated data coordinated by INSERM-US14 in Paris.