Venous angiomas, also known as Venous vascular malformations or developmental venous anomalies (DVA), represent congenital anatomically variant pathways in the normal venous drainage of an area of the brain.
The venous angioma have usually form a little cluster (“star burst” or “caput Medusae” – looks like a “head of snakes”), and these veins generally drain into a larger “collector” vein. The collector vein is usually on the surface of the brain, but sometimes there may be deep drainage too.
The pattern of these veins is frequently simple, but may at times be more complex looking. Between the veins that make us the venous angioma is normal brain tissue. Sometimes one or more of these veins can appear extra dilated and may be more thin walled than other veins in the brain. Venous angiomas tend to occur near the frontal horns of the ventricles (fluid filled spaces of the brain) and also in the cerebellum (small part of the brain at the lower back part of the head). Number of View: 4077