Reversible Pontine MRI Lesion in Acute Thalamic Infarct: Reversible Encephalopathy due to Hypertension?

J Korean Neurol Assoc > Volume 24(6); 2006 > Article

Journal of the Korean Neurological Association 2006;24(6): 622-624.

급성 시상부위 뇌경색 환자에서 보인 가역적 뇌교병변 (뇌자기공명영상촬영): 고혈압에 의한 가역적 뇌증인가?

양현덕, 강성원 정진성 이성익 손일홍 김형진a

원광대학교 의과대학 신경과학교실, 국립법무병원 신경과a

Reversible Pontine MRI Lesion in Acute Thalamic Infarct: Reversible Encephalopathy due to Hypertension?

Hyun Duk Yang

Department of Neurology, Wonkwang University College of Medicine, Gunpo; Department of Neurology, Institute of Forensic Psychiatry Ministry of Justicea, Gongju, Korea

Abstract

Posterior reversible encephalopathy syndrome associated with hypertension rarely presents with predominant involvement of the brainstem and is relative sparing of the supratentorial regions. A relative paucity of brainstem signs and symptoms, despite extensive neuroimaging abnormalities therein, support the diagnosis. Although elevation of blood pressure is common in acute cerebral infarction, concomitant brainstem edema has not been reported. We describe here the clinical and neuroimaging features of an unusual brainstem hyperintensity associated with acute ischemic stroke. The neuroimaging abnormalities improved after stabilization of blood pressure, distinguishing this syndrome from brainstem infarction.KeyWords:Posterior reversible hypertensive encephalopathy, Reversible pontine edema

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