The Human Phenotype Ontology (HPO) provides the following list of features that have been reported in people with this condition. Much of the information in the HPO comes from Orphanet, a European rare disease database. If available, the list includes a rough estimate of how common a feature is (its frequency). Frequencies are based on a specific study and may not be representative of all studies. You can use the MedlinePlus Medical Dictionary for definitions of the terms below.
|Signs and Symptoms||Approximate number of patients (when available)|
|Non-acidotic proximal tubulopathy||100%|
|Abnormality of the fontanelles or cranial sutures||90%|
|Aplasia/Hypoplasia of the corpus callosum||90%|
|Broad nasal tip||90%|
|Depressed nasal bridge||90%|
|High anterior hairline||90%|
|Low-set, posteriorly rotated ears||90%|
|Sensorineural hearing impairment||90%|
|Congenital diaphragmatic hernia||50%|
|Progressive visual loss||33%|
|Abnormality of female internal genitalia||7.5%|
|Hypoplasia of the iris||7.5%|
|Ventricular septal defect||7.5%|
|Aplasia/Hypoplasia of the corpus callosum||11/11|
|Sensorineural hearing impairment||5/5|
|Wide anterior fontanel||9/12|
|Congenital diaphragmatic hernia||9/13|
|Posteriorly rotated ears||7/11|
|Autosomal recessive inheritance||-|
|Partial agenesis of the corpus callosum||-|
Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.
The resources below provide information about treatment options for this condition. If you have questions about which treatment is right for you, talk to your healthcare professional.
Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.
Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.