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Glioma Mimics: Magnetic Resonance Imaging Characteristics Of Granulomas In Dogs, Lauren Diangelo, Aaron A. Cohen-Gadol, Hock Gan Heng, Margaret A. Miller, Devon W. Hague, John H. Rossmeisl, Robin T. Bentley

Purdue University Libraries Open Access Publishing Fund

Granulomas can “mimic” gliomas on magnetic resonance imaging (MRI) in human patients. The goal of this retrospective study was to report canine brain granulomas that were consistent with glioma based upon MRI, report their histologic diagnosis, and identify MRI criteria that might be useful to distinguish granuloma from glioma. Ten granulomas, initially suspected to be glioma based on MRI, were ultimately diagnosed as granulomatous meningoencephalomyelitis (n = 5), infectious granulomas (n = 3) or other meningoencephalitis (n = 2). Age was 1.6–15.0 years and two dogs were brachycephalic breeds. MRI characteristics overlapping with glioma included intra-axial, heterogeneous, …