Malignant squamous cell thymoma in a horse.
D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000556:secondary / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D013945:Thymoma / Q000473:pathology / Q000662:veterinary*; D013953:Thymus Neoplasms / Q000473:pathology / Q000662:veterinary*