Malignant skin neoplasms in goats in Sicily, Italy: clinical, virological and pathological investigations.

Neoplasms in small ruminants are considered uncommon and their reported incidence is variable. The aims of this investigation were to characterize malignant skin neoplasms in adult goats reared in Sicily, Italy, and to evaluate potential correlations between gross and histopathology features of the tumours and signalment, tumour location and/or viral infections. A total of 75 malignant skin masses were examined. In selected animals with perineal masses (n = 28) virological and serological investigations on tissues and blood were also conducted. According to the histological features, the lesions were classified as 67 squamous cell carcinomas (SCCs) (of which 65 were located in the perineum), six melanomas and two fibrosarcomas. In three cases, neoplasms at the base of the horn were associated with nasal polyps. Among the selected perineal SCCs, papillomaviruses (PVs), caprine herpesvirus 1 and parapoxvirus were not detected on polymerase chain reaction or on serological examination. However, further investigation on a larger sample size is required to evaluate the potential role of PVs in the pathogenesis of skin tumours in goats.

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Declaration of competing interests The authors declared no conflicts of interest in relation to the research, authorship or publication of this article.