title: Malignant mixed (carcinosarcoma) mammary tumor in a gray squirrel.
mesh_terms: D000828:Animal Population Groups; D000818:Animals; D000835:Animals, Wild; D002296:Carcinosarcoma / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D005260:Female; D008207:Lymphatic Metastasis; D008321:Mammary Glands, Animal; D009369:Neoplasms / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D012376:Rodent Diseases / Q000473:pathology*; D012589:Sciuridae