Splenic lymphosarcoma in a horse.
A 10-year-old Tennessee Walker gelding, with a history of progressive weight loss, intermittent colic and lethargy, had a slight fever, tachycardia, tachypnea, pallor, ascites and marked ventral edema. Blood analyses revealed anemia, leukocytosis, neutrophilia with a left shift, lymphopenia, monocytosis, hypoproteinemia and a slightly increased SDH level. Abdominocentesis produced red-orange fluid with many RBC and an increased fibrinogen content. Rectal palpation revealed a large mass in the left caudal abdominal quadrant. The animal died shortly after resection of the mass. The histopathologic diagnosis was lymphosarcoma, involving the spleen, liver and lung.
D000818:Animals; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D008113:Liver Neoplasms / Q000556:secondary; D008175:Lung Neoplasms / Q000556:secondary; D008228:Lymphoma, Non-Hodgkin / Q000662:veterinary*; D008297:Male; D013160:Splenic Neoplasms / Q000662:veterinary*