Peripheral (extracranial) nerve tumors: correlation of MR imaging and histologic findings

Radiology. 1992 May;183(2):341-6. doi: 10.1148/radiology.183.2.1561333.


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.

MeSH terms

  • Adolescent
  • Adult
  • Female
  • Humans
  • Magnetic Resonance Imaging*
  • Male
  • Middle Aged
  • Neurilemmoma / pathology*
  • Neurofibroma / pathology*
  • Peripheral Nervous System Neoplasms / pathology*
  • Retrospective Studies