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Radiology, Vol 183, 341-346, Copyright © 1992 by Radiological Society of North America
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JS Suh, P Abenoza, HR Galloway, LI Everson and HJ Griffiths
Department of Radiology, University of Minnesota Hospital and Clinic, Minneapolis 55455.
Magnetic resonance (MR) images of 16 peripheral nerve tumors (14 patients) were correlated with histopathologic appearance. Thirteen patients had surgically proved neuro-fibromatosis. There were 10 neurofibromas, four schwannomas, and two neurofibrosarcomas. Seven of the 10 neurofibromas showed a target pattern of increased peripheral signal intensity and decreased central signal intensity on T2-weighted images. This pattern appeared to correspond to a distinctive zonal histologic appearance that was found only in the neurofibromas. This pattern was not seen on MR images of the other peripheral tumors.
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