title: Malignant thymoma with multiple metastases in a mare.
mesh_terms: D000818:Animals; D005260:Female; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D008175:Lung Neoplasms / Q000556:secondary / Q000662:veterinary*; D008207:Lymphatic Metastasis / Q000662:veterinary; D008854:Microscopy, Electron; D013945:Thymoma / Q000473:pathology / Q000556:secondary / Q000662:veterinary*; D013953:Thymus Neoplasms / Q000473:pathology / Q000662:veterinary*