Melanoma em prepúcio de cão: relato de caso

Abstract

Melanoma is a neoplasm that originates from melanocytes, which are melanin-producing cells, a brown or black pigment that pigment skin and hair. It is a neoplasm that manifests itself in a benign or malignant form, characterized by nodules that are normally pigmented, and may be located in various places, such as the oral cavity, lips, skin, and digits. Due to the rare occurrence of this disease in the genital region of canine animals, the present study aims at reporting a case of melanoma in the foreskin of a 13-year-old dog, with no defined breed pattern, seen at the Veterinary Hospital (HV) of the Federal University of Paraíba (UFPB), thus contributing to a better understanding of this disease. Upon physical examination of the animal, a nodule was observed in the region of the foreskin. A fine needle aspiration cytology was performed, resulting in melanoma, and complementary exams were requested to help the diagnosis. After supportive therapy to improve the general condition of the animal, it died before surgical removal of the tumor and castration, making it impossible to evaluate the effectiveness of treatment in improving the quality of life and increasing survival.