Transient global amnesia: increased signal intensity in the right hippocampus on diffusion-weighted magnetic resonance imaging.
We report on a patient with pure transient global amnesia (TGA) whose magnetic resonance imaging (MRI) demonstrated a small region of increased signal intensity in the right hippocampus on diffusion-weighted imaging (DWI). DWI was sensitive and useful for evaluating the early stage of TGA and might help to explain the pathophysiology of TGA.
Matsui
M
M
Division of Neuroimaging Research, Hyogo Institute for Aging Brain and Cognitive Disorders, Japan. matsui@hiabcd.go.jp
Imamura
T
T
Sakamoto
S
S
Ishii
K
K
Kazui
H
H
Mori
E
E
D020236:Amnesia, Transient Global / Q000473:pathology* / Q000503:physiopathology; D006624:Hippocampus / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013997:Time Factors