part_of part of part of has_disease_location cavernous hemangioma central nervous system hemangioma central nervous system hematopoietic neoplasm central nervous system Hemangioma, Cavernous, Central Nervous System Dani Welter A vascular anomaly composed of a collection of large, thin walled tortuous VEINS that can occur in any part of the central nervous system but lack intervening nervous tissue. Familial occurrence is common and has been associated with a number of genes mapped to 7q, 7p and 3q. Clinical features include SEIZURES; HEADACHE; STROKE; and progressive neurological deficit. MESH:D020786