Revista Lusófona de Ciência e Medicina Veterinária
Abstract
A 6 year-old male Labrador Retriever presented with a slow growing subcutaneous tumor in the elbow that mimetized a hygroma. Histologically the tumor consisted of a multinodular mass of spindle cells proliferating from the muscular layer of the subcutaneous vessels. Tumor cells stained positively for alpha-smooth muscle actin and vimentin but were negative for desmin and S-100. The diagnosis was cutaneous angioleiomyosarcoma.