title: Carcinosarcoma in an opossum.
mesh_terms: D000818:Animals; D002296:Carcinosarcoma / Q000473:pathology / Q000662:veterinary*; D005260:Female; D009062:Mouth Neoplasms / Q000473:pathology / Q000662:veterinary*; D009362:Neoplasm Metastasis; D009893:Opossums