A Case of Osmotic Myelinolysis Confined to Central Pons and Pyramidal Tracts

J Korean Neurol Assoc > Volume 22(5); 2004 > Article

Journal of the Korean Neurological Association 2004;22(5): 529-531.

교뇌중심부 및 추체로에 국한된 삼투성 수초용해 1예

박제원, 이승로* 김주한 김명호 김희태 김승현†

한양대학교 의과대학 신경과학교실, 진단방사선과학교실*

A Case of Osmotic Myelinolysis Confined to Central Pons and Pyramidal Tracts

Jewon Park

Departments of Neurology, Radiology*, Hanyang University College of Medicine, Seoul, Korea

Abstract

Osmotic myelinolysis is a distinctive clinical syndrome with a characteristic “bat wing” MRI lesion in the central pons, which is also called central pontine myelinolysis (CPM). However, demyelinating lesions are not only limited to the central pons, but also may be involved in the extrapontine regions including the basal ganglia, thalamus, and cerebellum (extrapontine myelinolysis; EPM). We report an atypical case of osmotic myelinolysis confined to the pyramidal tract from the precentral gyrus to the central pons via the corona radiata and internal capsule in a MR image. Key Words: Myelinolysis, Pyramidal tracts, Magnetic resonance imaging