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American Journal of Neuroradiology 24:1372-1375, August 2003
© 2003 American Society of Neuroradiology

Case Report
BRAIN

MR Imaging of Heat Stroke: External Capsule and Thalamic T1 Shortening and Cerebellar Injury

Carol T. McLaughlina, Arthur G. Kaneb and Andrew E. Auberc

a Department of Health Education and Training, Tripler Army Medical Center, Honolulu, HI and the Ohio State University College of Medicine and Public Health, Columbus, OH
b Department of Radiology, Neuroradiology Section, Tripler Army Medical Center, Honolulu, HI
c Department of Radiology, Neuroradiology Section, Brooke Army Medical Center, San Antonio, TX

Address correspondence to Arthur G. Kane, MD, Jarrett-White Road, Tripler Army Medical Center, Honolulu, HI 96859

Summary: We present a case of increased signal intensity of the cerebrum (symmetric involvement of the paraventricular thalamus and external capsule) and cerebellum on both T1- and T2-weighted images in a patient with documented heat stroke. An ischemic and hemorrhagic mechanism is proposed, and the contributions of the direct effects of hyperthermia are discussed.




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Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X