Dermal Melanocytoma of the Hoof in a Goat

Case Description- A two-year-old female goat with a dark mass on the left hoof was referred to veterinary clinic of Shahid Bahonar University of Kerman. Clinical Findings- A large black and hemorrhagic tumor-like tissue was observed on the left hoof. The epidermis was intact and hairless. Treatment and Outcome- Considering the good body condition of the patient, the mass was removed surgically. Cefazoline (۲۰ mg/kg/IM, Jaberebne Hayyan laboratory, Iran) was administered every ۱۲ hours for ۵ days. Histopathologic examination showed small spindle cells with intracytoplasmic melanin granules in dermis and dermal melanocytoma was confirmed. Clinical Relevance- Melanocytomas are common in dogs, horses, and certain breeds of swine, less common in cats and cattle, and rare in sheep and goats. In such cases, surgical treatment is the treatment of choice. This is the first report of dermal melanocytoma in goat.