Venous angioma

Developmental venous anomaly has mostly supplanted the more pedestrian venous angioma

see Developmental venous anomaly (DVA).

Cavernous malformations (CMs) were difficult to diagnose in the pre-MRI era. They are invisible on angiogram and thus the term AOVM (angiographically occult arteriovenous malformation) was sometimes used. However, the venous angioma sometimes seen in association with a CM was visible on angiogram, and thus believed to be the source of the hemorrhage seen, even though in reality it was the CM that had hemorrhaged. Thus, venous angiomas were sometimes treated, also with radiosurgery, a management that was soon aborted ¹⁾.