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Brainstem Involvement With Mycosis Fungoides: An Unusual Central Nervous System Complication

Raquel del Carpio-O’Donovana and Carolyn Freemanb

a Department of Diagnostic Radiology, McGill University Health Centre, McGill University, Montreal, Canada
b Department of Oncology, Division of Radiation Oncology, McGill University Health Centre, McGill University, Montreal, Canada



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  		FIG 1. Axial MR images of the brain in a 61-year-old woman with a 2-year history of cutaneous T-cell lymphoma (MF) and recent-onset CNS symptoms.

A, T2-weighted image (3000/98/1) obtained through the pons and superior cerebellar peduncles shows a diffuse area of hyperintensity (arrow) in the posterior half of the pons.

B, FLAIR image obtained through the cerebral peduncles at the level of the third cranial nerves shows an extensive area of hyperintensity in the tegmentum. The border between the lesion and the spared substantia nigra is sharp.

C, Contrast-enhanced image (450/20/2) shows a lack of uptake in the lesion.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X