Brain stem hypertensive encephalopathy evaluated by line scan diffusion-weighted imaging.
Hypertensive encephalopathy rarely presents with predominant involvement of the brain stem and relative sparing of the supratentorial regions. We describe the MR imaging features in a patient with reversible brain stem hypertensive encephalopathy. Extensive hyperintensity was predominantly seen in brain stem regions on fluid-attenuated inversion-recovery and T2-weighted images. These lesions showed an increased apparent diffusion coefficient with the use of line scan diffusion-weighted imaging. The clinical findings and MR imaging abnormalities resolved with control of hypertension.
Nagata
Motonori
M
Department of Radiology, Mie University School of Medicine, Tsu, Mie, Japan.
Maeda
Masayuki
M
Tsukahara
Hirokazu
H
Maier
Stephan E
SE
Takeda
Ken
K
D000368:Aged; D001933:Brain Stem; D038524:Diffusion Magnetic Resonance Imaging; D006801:Humans; D020343:Hypertensive Encephalopathy / Q000175:diagnosis*; D008297:Male