Vol. 13,No. 1, January 2014
Gingival neoplasm presenting as an ossifying epulis in a parrot cichlid fish (Hoplarchus psittacus)
Description: Aquatic Animal Health Unit, School of Veterinary Medicine, Shiraz University, Shiraz, Iran 2-Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran 3-Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran 4-Present address: Shefa neuroscience research center, Tehran, Iran
Abstract: 
This report describes the histopathological features of an ossifying epulis, measuring 1.5 × 1 × 1 cm in length, width and height, respectively, on the lingual surface of the lower jaw of a 2.5 year-old parrot cichlid (Hoplarchus psittacus) from a commercial aquarium. The tumor had appeared in the oral cavity three months prior to its introduction to the laboratory for diagnosis. Grossly, the neoplastic mass was pale-tan with a shiny, smooth surface and coalescing areas of hemorrhage. Microscopically, the overlying epithelium was hyperplastic and extended deeply into the underlying stroma. The stroma consisted of well vascularized collagenous tissue and neoplastic fibroblasts associated with irregular cords and islands of mineral deposition as dentin-like materials confirmed by Masson's trichrome and Goldner's trichrome staining.

Thursday 7 May 2015
Author: Modarres Mousavi Behbahani, S.M, 1, 4; Akhlaghi, M, 1*; Khodakaram- Tafti, A.2; Ahmadi, N.2; Tabatab
KeyWord: Epulis, Oral tumor, Parrot cichlid, Histopathology, Radiography
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