title: Malignant melanoma in a horse.
mesh_terms: D000818:Animals; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D008297:Male; D008545:Melanoma / Q000473:pathology / Q000662:veterinary*; D013899:Thoracic Neoplasms / Q000473:pathology / Q000662:veterinary*