Related Experiment Video
Updated: Jun 13, 2026

Imaging Vital and Non-vital Brain Pericytes in Brain Slices following Subarachnoid Hemorrhage
Published on: August 18, 2023
Imaging diagnosis--Hemorrhagic meningioma
Paula Martin-Vaquero1, Ronaldo C Da Costa, Famke Aeffner
1Department of Veterinary Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA. martin-vaquero.1@osu.edu
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.
Related Concept Videos
Hemorrhagic Stroke l: Introduction
Hemorrhagic Stroke ll: Pathophysiology
Imaging Studies VII: Vascular Imaging

