venous varix and developmental venous anomaly

Cerebral developmental venous anomalies are the most frequently encountered cerebral vascular malformation. Most of them are asymptomatic and observed incidentally during routine CT and MRI studies. Most common vascular anomaly associated with DVA is cavernous malformation. Rarely DVAs are found in association with AV fistula. DVA associated with cerebral venous aneurysm is very rare, only few cases have been reported.

Reference:

10.1136/bcr-2018-228067