Peer-reviewed veterinary case report
Black skin tumor on a 1-year-old cat's head and outcome
By Bae, Min-Kyung et al.·Published in Veterinary clinical pathology·2024·Research Institute, South Korea·View original on PubMed →
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Original publication title: Clinicopathologic description of a cutaneous melanocytic tumor in a 1-year-old cat.
- Species:
- cat
Plain-English summary
A 1-year-old cat had a black nodule on its head that turned out to be a type of skin tumor called a melanocytoma. Tests showed that while the tumor had some features suggesting it could be cancerous, the cat did well and showed no serious issues over the next five months. This case suggests that the growth rate of these tumors might not always indicate how dangerous they are. The cat was monitored and did not require aggressive treatment, which is a positive outcome for this type of tumor.
People also search for: cat skin tumor treatment · black nodule on cat head · feline melanocytoma prognosis
Abstract
A feline cutaneous melanocytic tumor in a 1-year-old cat is reported. The cytologic, histologic, and immunohistochemical characteristics of the pediatric feline cutaneous melanocytoma are included. A solitary, black-colored nodule on the head was histologically diagnosed as the epithelioid type of melanocytoma. Immunohistochemically, the neoplastic melanocytes demonstrated immunoreactivity to the S100 and MelanA antibodies but not to the PNL2 antibody. Despite high mitotic counts (17/10HPFs) and a Ki67 index (33%) suggesting malignant melanoma, the patient exhibited a favorable 5-month outcome. The mitotic activity of the neoplastic cells may not provide a reliable prediction for feline melanocytic tumors.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/39313773/