A case of primary extracranial meningioma of the forearm with bone invasion

Skeletal Radiol. 2007 Jun;36(6):551-3. doi: 10.1007/s00256-006-0255-5. Epub 2007 Mar 7.

Abstract

We report here a rare case of primary extracranial meningioma in a 73-year-old woman with an asymptomatic mass located in the left distal-dorsal forearm. MRI revealed the lesion to be poorly circumscribed and unclear, with iso-signal intensity to muscle on T1 and with a relatively high signal intensity on T2-weighted imaging. The histopathology of the specimen from incision biopsy was typical of meningioma, showing bland spindle cell proliferation with a whorling pattern. Immunohistochemically, the tumor cells were positive for epithelial membrane antigen and vimentin, and negative for S-100 expression.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Bone Neoplasms / diagnosis*
  • Contrast Media
  • Diagnosis, Differential
  • Female
  • Forearm
  • Gadolinium DTPA
  • Humans
  • Immunohistochemistry
  • Magnetic Resonance Imaging*
  • Meningioma / diagnosis*
  • Radius / pathology

Substances

  • Contrast Media
  • Gadolinium DTPA