Midbrain ptosis caused by periaqueductal infarct following cardiac catheterization: early detection with diffusion-weighted imaging.
Isolated infarcts in the periaqueductal region are rare but have been reported after cardiac catheterization. The authors report a case of dorsal midbrain infarct which caused bilateral ptosis, partial upgaze paresis, and internuclear ophthalmoplegia imaged within eight hours with diffusion-weighted imaging (DWI). The lesion was later confirmed on T2-weighted images. Diffusion-weighted imaging can rapidly confirm the diagnosis of this rare brain-stem infarct.
Department of Neurology, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212, USA.
M
M
Mihaescu
J
J
Brillman
W
W
Rothfus
D001763:Blepharoptosis / Q000209:etiology*; D020526:Brain Stem Infarctions / Q000175:diagnosis* / Q000209:etiology; D006328:Cardiac Catheterization; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010487:Periaqueductal Gray / Q000098:blood supply / Q000473:pathology*; D013681:Tegmentum Mesencephali / Q000098:blood supply / Q000473:pathology