Hemorrhagic brain metastases with high signal intensity on diffusion-weighted MR images. A case report

Acta Radiol. 2002 Nov;43(6):563-6. doi: 10.1034/j.1600-0455.2002.430604.x.


Diffusion-weighted MR imaging has been applicable to the differential diagnosis of abscesses and necrotic or cystic brain tumors. However, restricted water diffusion is not necessarily specific for brain abscess. We describe ring-enhancing metastases of lung carcinoma characterized by high signal intensity on diffusion-weighted MR images. The signal pattern probably reflected intralesional hemorrhage. The present report adds to the growing literature regarding the differential diagnosis of ring-enhancing brain lesions.

Publication types

  • Case Reports

MeSH terms

  • Brain Abscess / diagnosis
  • Brain Neoplasms / complications
  • Brain Neoplasms / diagnosis*
  • Brain Neoplasms / secondary*
  • Diagnosis, Differential
  • Diffusion Magnetic Resonance Imaging*
  • Female
  • Humans
  • Intracranial Hemorrhages / diagnosis*
  • Intracranial Hemorrhages / etiology
  • Lung Neoplasms / pathology
  • Magnetic Resonance Imaging
  • Middle Aged