Short communication: Occurrence of squamous cell carcinoma in a platy fish (Xiphophorus maculatus): A case report

According to prior reports, similar to mammals, fish are frequently affected by neoplastic proliferations. These neoplasms are classified according to the mammalian tumor classification System (Rahmati-Holasoo et al., 2010). Squamous cell carcinoma (SCC) is one of the most common forms of skin neoplasm in which cells in the epithelial layer of the skin develop into a malignant tumor. SCC has been reported in both fresh and marine water fish (Mawdesley-Thomas and Bucke, 1967). Squamous cell carcinoma has been reported in a number of species, for example, Atlantic salmon, Salmo salar L. (Roberts, 1972); oscar, Astronotus ocellatus (Rahmati-Holasoo et al., 2010); rudd, Scardinius erythrophthalmus (Hanjavanit and Mulcahy, 2004); gudgeon, Gobio gobio (Mawdesley-Thomas and Bucke, 1967); gulf menhaden, Brevoortia patronus Goode (Fournie et al., 1987); and the hybrid sunfish (Fitzgerald et al., 1991). In spite of the fact that reports have been previously published on SCC in various species of fish, to the best of the author’s knowledge, this is the first report on SCC in platy fish (Xiphophorus maculatus) in the world

The first report on epicardial cavernous hemangioma in farmed sturgeon, Acipenser baerii, a microscopic survey

Haemangioma is a benign tumor of vascular endothelial cells or their progenitors. This tumor is common in dogs and rare in cats, horses and other domestic animals (Goldschmidt and Hendrick, 2002). In dogs, hemangiomas are typically benign and solitary those are often formed in the dermis of the skin, while hemangiosarcomas are regularly present as disseminated tumors that involve the spleen, heart, lung, liver, soft tissues of the trunk and extremities (Brown, 1985)