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Case Reports in Veterinary Medicine
Volume 2013, Article ID 759054, 4 pages
http://dx.doi.org/10.1155/2013/759054
Case Report

Canine Choroid Plexus Tumor with Intracranial Dissemination Presenting as Multiple Cystic Lesions

1Tufts Veterinary Emergency Treatment and Specialties, 525 South Street, Walpole, MA 02081, USA
2North Carolina State University Veterinary Teaching Hospital, 1052 William Moore Drive, Raleigh, NC 27607, USA
3Associate Dean for Research, Ross University School of Veterinary Medicine, P.O. Box 334, Basseterre, Saint Kitts, USA

Received 9 April 2013; Accepted 9 May 2013

Academic Editors: S. C. Rahal, M. Santos, R. M. Santos, and S. Stuen

Copyright © 2013 Trisha J. Oura et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A Miniature Pinscher developed acute blindness and behavioral changes. On magnetic resonance imaging (MRI), there were multiple small intra-axial cystic lesions, and primary differential diagnoses included primary or metastatic neoplasia and neurocysticercosis. These cystic lesions were subsequently diagnosed histopathologically as disseminated choroid plexus carcinoma. This is only the second documented description of this diagnosis in a dog, but both patients had very similar MRI findings. This patient adds to the literature about the MRI characteristics of choroid plexus tumors and indicates that choroid plexus tumor should be considered as a possible cause of small multifocal intra-axial cystic brain lesions in dogs, regardless of whether a primary intraventricular lesion is visible.