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Case Reports
. 2003 Aug;24(7):1372-5.

MR imaging of heat stroke: external capsule and thalamic T1 shortening and cerebellar injury

Carol T McLaughlin  1 , Arthur G Kane, Andrew E Auber
Affiliations
Case Reports

MR imaging of heat stroke: external capsule and thalamic T1 shortening and cerebellar injury

Carol T McLaughlin et al. AJNR Am J Neuroradiol. 2003 Aug.

Abstract

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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Figures

F<sc>ig</sc> 1.
Fig 1.
Proton density–(A) and T2-weighted (B) axial MR images of the brain at the level of the third ventricle show hyperintensity (arrows) in the external capsules and medial thalami and altered signal intensity in the adjacent third ventricle.
F<sc>ig</sc> 2.
Fig 2.
Three axial precontrast contiguous T1-weighted images (A) and corresponding postcontrast images (B) demonstrate both T1 shortening and accompanying enhancement in the same area (arrows).
F<sc>ig</sc> 3.
Fig 3.
Axial postcontrast T1-weighted image shows scattered cerebellar hyperintensity and patchy enhancement in the cerebellar hemispheres bilaterally (arrows).
See this image and copyright information in PMC

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