arteriovenous malformation true SNOMEDCT_US_2018_03_01:11071001 Racemose Angioma NCI2004_11_17:C4297 DOID:11294 NCI:C2882 disease_ontology Racemose hemangioma Arteriovenous malformations are abnormal blood vessels that shunt blood directly from the arterial to the venous circulation.There is a risk of intracranial hemorrhage, estimated at 2-4% per year, which can be limited or catastrophic. Management is therefore directed at reducing mortality and morbidity (neurological and cognitive impairment) from hemorrhage. Arteriovenous hemangioma UMLS_CUI:C0334533 Cirsoid aneurysm Racemose aneurysm SNOMEDCT_US_2018_03_01:14156004 A hemangioma that is characterized by a configuration of blood vessels that shunts arterial blood directly into veins by bypassing the capillary system. ICD10CM:I77.0 vascular malformation