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Serial magnetic resonance imaging and single‐photon emission computed tomography findings in a patient with heat stroke
Author(s) -
Nakano Yumiko,
Manabe Yasuhiro,
Hattori Mizuho,
Takahashi Yoshiaki,
Narai Hisashi,
Omori Nobuhiko,
Takeyama Takahisa,
Abe Koji
Publication year - 2015
Publication title -
neurology and clinical neuroscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
0ISSN - 2049-4173
DOI - 10.1111/ncn3.172
Subject(s) - medicine , magnetic resonance imaging , cerebellar hemisphere , cerebellum , dysarthria , ataxia , stroke (engine) , unconsciousness , single photon emission computed tomography , radiology , nuclear medicine , anesthesia , mechanical engineering , psychiatry , engineering
We report on serial changes in magnetic resonance imaging and single‐photon emission computed tomography in a patient with heat stroke. A 66‐year‐old man was admitted for unconsciousness with hyperthermia. He presented with dysarthria and truncal ataxia. Axial diffusion‐weighted imaging showed marked hyperintensity in the vermis and cerebellar hemisphere with a decrease of the apparent diffusion coefficient. Follow‐up magnetic resonance imaging at 165 days after onset showed slowly progressing cerebellar atrophy. Follow‐up single‐photon emission computed tomography at 8 months after onset showed progressing hypoperfusion in the diffuse cerebellar cortex. He became alert, but dysarthria and truncal ataxia persisted. These findings show that cytotoxic edema leads to delayed irreversible neuronal damage in the cerebellum. Our patient demonstrated that heat stroke causes irreversible neuronal damage, especially in the cerebellum.