Magnetic resonance imaging features of intracranial granular cell tumors in six dogs

Cona C. Anwer, Karen Vernau, Robert Higgins, Peter J Dickinson, Beverly Sturges, Richard A Lecouteur, R. Timothy Bentley, Erik R Wisner

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Magnetic resonance (MR) imaging characteristics of intracranial granular cell tumors (GCTs) have been previously reported in three dogs. The goal of this retrospective study was to examine a larger number of dogs and determine whether distinctive MR characteristics of intracranial GCTs could be identified. Six dogs with histologically confirmed intracranial GCTs and MR imaging were included. Tumor location, size, mass effect, T1- and T2-weighted signal intensity, and peritumoral edema MR characteristics were recorded. In all dogs, GCTs appeared as well-defined, extra-axial masses with a plaque-form, sessile distribution involving the meninges. All tumors were located along the convexity of the cerebrum, the falx cerebri, or the ventral floor of the cranial vault. All tumors were mildly hyperintense on T1-weighted images, and iso- to hyperintense on T2-weighted images. A moderate-to-severe degree of peritumoral edema and mass effect were evident in all dogs. Findings indicated that, while several MR imaging characteristics were consistently identified in canine cerebral GCTs, none of these characteristics were unique or distinctive for this tumor type alone.

Original languageEnglish (US)
Pages (from-to)271-277
Number of pages7
JournalVeterinary Radiology and Ultrasound
Volume54
Issue number3
DOIs
StatePublished - May 2013

Keywords

  • Granular cell tumor
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • veterinary(all)

Fingerprint Dive into the research topics of 'Magnetic resonance imaging features of intracranial granular cell tumors in six dogs'. Together they form a unique fingerprint.

  • Cite this