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) |
| Abnormal nasal morphology | 90% |
| Cognitive impairment | 90% |
| Limitation of joint mobility | 90% |
| Microcephaly | 90% |
| Short stature | 90% |
| Sloping forehead | 90% |
| Camptodactyly of finger | 50% |
| Cryptorchidism | 50% |
| Deviation of finger | 50% |
| Intrauterine growth retardation | 50% |
| Talipes | 50% |
| Abnormal lung lobation | 7.5% |
| Oral cleft | 7.5% |
| Seizures | 7.5% |
| Ventriculomegaly | 7.5% |
| Abnormal joint morphology | - |
| Autosomal recessive inheritance | - |
| Clinodactyly of the 5th finger | - |
| Prominent nose | - |
| Rocker bottom foot | - |
| Small for gestational age | - |
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.
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.
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
