Unusual MR Feature Presenting Discrete Involvement of Pyramidal Tract in Progressive Multifocal Leukoencephalopathy: A Case Report

Maki Umino, Masayuki Maeda, Nobuyoshi Matsushima, Ai Itoh, Akira Taniguchi, Hidekazu Tomimoto

Department of Neurology, Mie University School of Medicine, Tsu, Japan.
Department of Radiology, Mie University School of Medicine, Tsu, Japan.

DOI: 10.4236/ojmi.2012.23018                

Abstract

Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease caused by reactivation of JC virus in immunocompromised patients. To date, PML with discrete involvement of the pyramidal tract has been described in only two patients. This report describes an additional case with PML showing discrete involvement of the pyramidal tract on T2-weighted images and FLAIR images.

Keywords

Progressive Multifocal Leukoencephalopathy; Pyramidal Tract; MRI

Conflicts of Interest

The authors declare no conflicts of interest.

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