Imaging diagnosis--Hemorrhagic meningioma

Vet Radiol Ultrasound. 2010 Mar-Apr;51(2):165-7. doi: 10.1111/j.1740-8261.2009.01645.x.

Abstract

An 8-year-old Labrador Retriever developed acute central vestibular signs. An extra-axial mass was detected on MR images ventral to the brainstem. The mass was both T1- and T2-hypointense; there was also thin-rimmed patchy contrast enhancement. These findings were nonspecific, but the extreme T2-hypointensity was notable and suggested a hemorrhagic mass. The histologic diagnosis was anaplastic meningioma with acute hemorrhage. These findings document an unusual appearance of a meningioma in MR images due to intratumoral hemorrhage.

Publication types

  • Case Reports

MeSH terms

  • Animals
  • Autopsy / veterinary
  • Brain Stem / pathology
  • Dog Diseases / diagnosis*
  • Dog Diseases / etiology
  • Dog Diseases / pathology
  • Dogs
  • Euthanasia, Animal
  • Intracranial Hemorrhages / complications
  • Intracranial Hemorrhages / pathology
  • Intracranial Hemorrhages / veterinary*
  • Magnetic Resonance Imaging / methods
  • Magnetic Resonance Imaging / veterinary
  • Meningeal Neoplasms / complications
  • Meningeal Neoplasms / diagnosis
  • Meningeal Neoplasms / pathology
  • Meningeal Neoplasms / veterinary*
  • Meningioma / complications
  • Meningioma / diagnosis
  • Meningioma / pathology
  • Meningioma / veterinary*