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) |
| Fever | Very frequent (present in 80%-99% of cases) |
| Headache | Very frequent (present in 80%-99% of cases) |
| Arthralgia | Frequent (present in 30%-79% of cases) |
| Pruritus | Frequent (present in 30%-79% of cases) |
| Skin rash | Frequent (present in 30%-79% of cases) |
| Ascites | Occasional (present in 5%-29% of cases) |
| Bruising |
Occasional (present in 5%-29% of cases) |
| Cardiorespiratory arrest | Occasional (present in 5%-29% of cases) |
| Cerebral hemorrhage | Occasional (present in 5%-29% of cases) |
| Diarrhea | Occasional (present in 5%-29% of cases) |
| Epistaxis | Occasional (present in 5%-29% of cases) |
| Gastrointestinal hemorrhage | Occasional (present in 5%-29% of cases) |
| Gingival bleeding | Occasional (present in 5%-29% of cases) |
| Hepatomegaly | Occasional (present in 5%-29% of cases) |
| Hypoproteinemia | Occasional (present in 5%-29% of cases) |
| Hypotension | Occasional (present in 5%-29% of cases) |
| Lethargy | Occasional (present in 5%-29% of cases) |
| Leukopenia | Occasional (present in 5%-29% of cases) |
| Nausea and vomiting | Occasional (present in 5%-29% of cases) |
| Petechiae | Occasional (present in 5%-29% of cases) |
| Occasional (present in 5%-29% of cases) |
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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.
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