title: Basal-cell tumor in a Virginia opossum (Didelphis marsupialis).
mesh_terms: D000818:Animals; D002280:Basal Cell Carcinoma / Q000473:pathology / Q000662:veterinary*; D005260:Female; D009893:Opossums; D012878:Skin Neoplasms / Q000473:pathology / Q000662:veterinary*