AJDRAJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology
DOI 10.3174/ajnr.A1758

BRAIN

Imaging and Clinical Features of an Intra-Axial Brain Stem Schwannoma

S. Muzzafar, L. Ketonen, J.S. Weinberg and D. Schellingerhout

From the Neuroradiology Section (S.M., L.K., D.S.), Department of Radiology and Department of Neurosurgery (J.S.W.), University of Texas MD Anderson Cancer Center, Houston, Texas.

Please address correspondence to Dawid Schellingerhout, MD, Department of Radiology, MD Anderson Hospital, 1515 Holcombe Blvd, Houston, TX, 77030; e-mail: dawid.schellingerhout{at}di.mdacc.tmc.edu

SUMMARY: A 68-year-old man presented with a highly symptomatic brain stem tumor originally thought to be a brain stem glioma. Intraoperative MR imaging guidance was used to resect the tumor, and real-time evoked potentials improved during surgery. Pathology findings unexpectedly indicated that the tumor was an intra-axial brain stem schwannoma, a condition reported, to our knowledge, only 6 times previously in the literature. The patient made an excellent recovery with reversal of his symptoms.






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