Squamous cell carcinoma (SCC) is a tumor consisting of squamous epithelial cells. This tumor is relatively uncommon in goats. In this report, we discuss clinical, gross and histopathological features of SCC in six goats. The goats were referred to the veterinary clinic with a progressive ulcerative and hemorrhagic mass located in the perineal area. The vital signs (temperature, pulse rate, respiration rate) were normal. Biopsy specimens were taken and histopathological examinations were done. The tumor cells were large and had an abundant eosinophilic cytoplasm, ovoid nuclei with a prominent nucleolus. Keratin tonofibers and keratin pearls were also seen. The mitotic figures were moderate. The mass was found to be a moderately differentiated SCC. Ulceration with infiltration of neutrophils was observed on the surface of the tumors. The SCC tumors are uncommon in goats and have multi-factorial etiology. Age, ultraviolet (UV) light exposure, lack of epidermis pigmentation, and viruses may be involved in the presence of SCC.

Background:Liver lesions in cattle not only have negative effects on the cattle breedingindustry, but also lead to loss of animal protein production, and in particularto endanger the consumers’ health. OBJECTIVES:This study was carried out to examine the macroscopic and histopathologiclesions of liver in slaughtered cattle of Zabol City. METHODS:Livers of 281 cattle slaughtered at the industrial slaughterhouse of Zabol Citywere collected from March to September 2015 for gross and microscopicinvestigation. Tissue processing was conducted from specimens inspected totissue lesions with routine protocol and histopathological changes of liverswere examined under light microscopy. RESULTS:Macroscopic investigation of 281 cases showed 90 livers (32.02%) with gross lesions.In histopathological examination, there were 83 cases (29.53%) withhydatidosis, 3 cases (1.07%) with fasciolosis, 2 cases (0.71%) withperihepatitis and 2 cases (0.71%) with lipidosis.                                                                              CONCLUSIONS:Based on the results of this study, the most frequent liver lesion in cattleslaughtered in Zabol City was hydatidosis indicating the active life cycle of Echinococcusguanulosus and the outbreak of this parasitic disease in dogs and othercarnivores in Sistan region