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Hereditary neurocutaneous angioma is characterized by the association of cerebral and cutaneous angiomatous lesions. It has been described in less than 10 families. Clinical manifestations of the cerebral lesions include epilepsy, cerebral hemorrhage, and focal neurological deficit. Transmission is autosomal dominant.
Features include: Horner syndrome, Blood in the urine (hematuria), Hemiparesis, and Gastrointestinal hemorrhage and 1 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Kidneys and urinary system | 1 | Blood in the urine (hematuria) |
Digestive system |
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for hereditary neurocutaneous angioma.
1 publication has been identified in PubMed for hereditary neurocutaneous angioma. Research spans Case Report / Case Series (100%).
Kumawat BL (2025). [PMID: 40840962](https://pubmed.ncbi.nlm.nih.gov/40840962/). *BMJ Case Rep*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 4:38 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
1 |
Gastrointestinal hemorrhage |