Anomalous origin of the posterior inferior cerebellar artery from the internal carotid artery.
A rare anomalous origin of the posterior inferior cerebellar artery arising from the internal carotid artery is described. The embryologic explanation postulated is the persistence of a primitive communicating vessel (presegmental artery) between the anterior and posterior circulation.
Ahuja
A
A
Department of Radiology, University of Wisconsin, Clinical Science Center, Madison 53792-3252.
Graves
V B
VB
Crosby
D L
DL
Strother
C M
CM
D000368:Aged; D001158:Arteries / Q000002:abnormalities; D002343:Carotid Artery, Internal / Q000002:abnormalities*; D002531:Cerebellum / Q000098:blood supply* / Q000196:embryology; D006801:Humans; D008297:Male