Abnormality of the labyrinthine artery and its topographical relation to the abducent nerve.
A case of duplication of the labyrinthine artery arising from the basilar artery is described. The more slender branch takes a dorsal course and penetrates the abducent nerve in its uppermost fibres, while the thicker branch passes by the nerve on the ventral side. The two branches of the labyrinthine artery run separately to the internal auditory meatus. This variant was found only in one brain and only on the left side. The clinical relevance of this finding is discussed.
Melling
M
M
First Department of Anatomy, University of Vienna, Austria.
Koos
W T
WT
D000010:Abducens Nerve / Q000033:anatomy & histology*; D001158:Arteries / Q000002:abnormalities*; D001921:Brain / Q000098:blood supply; D007758:Ear, Inner / Q000098:blood supply*; D005260:Female; D006801:Humans; D008297:Male