About two cases of equine squamous cell carcinoma.

摘要: Squamous cell carcinoma (SCC) is one of the most common equine mucocutaneous tumors and represent a prognostic and therapeutic challenge to practitioners. It is characterized by local invasiveness, aggressivity and slow tendency to metastatise. The virus of Equine caballus papillomavirus-2 has been linked and involved in SCC development. Risk factors may include also pigmentation, chronic skin irritation and the exposition to ultraviolet light. This paper describes the history, clinical findings, diagnostic imaging (including MR), gross pathology and histopathology of 2 equine cases of squamous cell carcinoma in the eye and in the pharyngeal and guttural pouches epithelium complicated by pulmonary metastases. The size and histopathological features of the primary tumor are the most important factors to prognosis. The malignancy is not a common feature of the cutaneous forms, while it is much more likely …