Developmental venous anomaly entire right cerebral hemisphere
Unusual intermittent left hemisensory symptoms ? seizure
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Gross developmental venous anomaly of almost the entire right hemipshere as compared with the left. Note the paucity of right cortical veins on the MRV (except for a prominent anastomotic vein of Trolard) and the plethora of enhancing draining veins on the right entering enlarged subependymal veins.
A developmental venous anomaly is a congenital malformation of veins which drain normal brain.