title: Ectopic brain tissue in the retina of a beagle dog: a case report and literature review.
abstract: Isolated ectopic brain tissue within the orbit is an extremely rare finding and has never been reported in dogs or other domestic species. In this case, a focal choristoma of ectopic grey matter-like tissue was present within the retina of a mature female beagle dog, and consisted of neurons and astrocytes as demonstrated respectively by microtubule-associated protein 2 and glial fibrillary acidic protein immunohistochemistry. The lesion was located within the optic fundus adjacent to the optic disk and surrounded by dysplastic retina. The case is presented with a review of literature on this rare entity.
authors: School of Veterinary Science, University of Queensland, Gatton, Queensland, Australia. r.allavena@uq.edu.au
authors: Rachel E
authors: RE
authors: Allavena
authors: Keli
authors: K
authors: Phillips
authors: Marcus H
authors: MH
authors: Andrews
mesh_terms: D000818:Animals; D001921:Brain; D002828:Choristoma / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D005260:Female; D012164:Retinal Diseases / Q000473:pathology / Q000662:veterinary*