Two rare lumbar tumours with unusual MRI characteristics

Neuroradiology. 2000 Jun;42(6):458-61. doi: 10.1007/s002340000306.

Abstract

We present two rare lumbar lesions with similar MRI features: high signal on T1-weighted and proton density images and low signal on T2-weighted images; a melanotic schwannoma, and a giant-cell tumour-like lesion. Melanin in the first case and haemosiderin and metahaemoglobin in the second were responsible for the MRI characteristics.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Female
  • Giant Cell Tumor of Bone / diagnosis*
  • Giant Cell Tumor of Bone / pathology
  • Hemosiderin / analysis
  • Humans
  • Lumbar Vertebrae / pathology*
  • Magnetic Resonance Imaging*
  • Male
  • Melanins / analysis
  • Methemoglobin / analysis
  • Middle Aged
  • Neurilemmoma / diagnosis*
  • Neurilemmoma / pathology
  • Spinal Neoplasms / diagnosis*
  • Spinal Neoplasms / pathology

Substances

  • Melanins
  • Methemoglobin
  • Hemosiderin