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KMID : 0371620080230020169
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Journal of Wonkwang Medical Science
2008 Volume.23 No. 2 p.169 ~ p.172
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Nonketotic hyperglycemic hemichorea associated with petechial hemorrhage in the contralateral lentiform nucleus
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Lee Jai-Kyoo
Son Il-Hong
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Abstract
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Hemichorea is usually caused by lesions in the contralateral subthalamus and/or basal ganglia. Brain MRI shows a high signal intensity on T1-weighted images and brain CT shows a hyperdense lesion in the contralateral lentiform nucleus in patients with nonketotic hyperglycemic chorea. It is not unclear that these pathophysiological mechanisms is ischemia or petechial hemorrhage. A 78 year-old woman with uncontrolled diabetic mellitus presented with sudden involuntary movement in the right limbs. Brain CT on the first HD(hospital day) revealed hyperdensity in the left lentiform nucleus and Brain MRI on the 2nd HD showed high signal intensity on Tl-weighted images in the left lentiform nucleus. After 2 month later, involuntrary movment was subsided, and the density was more decreased on follow-up brain CT. We suggest a possibility that nonketotic hyperglycemic hemichorea is associated with petechial hemorrhage in the contralateral lentiform nucleus.
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KEYWORD
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Nonketotic hyperglycemic hemichorea, petechial hemorrhage
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