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AJNR - American Journal of Neuroradiology

Published ahead of print on September 26, 2007
doi: 10.3174/ajnr.A0705

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Linear T2 Hyperintensity along the Medial Margin of the Globus Pallidus in Patients with Machado-Joseph Disease and Parkinson Disease, and in Healthy Subjects

W. Shirai^a, S. Ito^a and T. Hattori^a

^a From the Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan

View larger version (101K): [in this window] [in a new window]   Fig 1. T2-weighted axial images in which the largest areas of the globus pallidus are shown. A, There is no apparent linear hyperintensity along the medial margin of the globus pallidus. B, There is apparent linear hyperintensity on both sides along the medial portion of the globus pallidus. These signals are hyperintense (ie, similar to the gray matter signals) and are located in the outer portion of the posterior limb of the right internal capsule. In addition, there are dilated perivascular spaces in the bilateral globus pallidi.