Malignant seminoma in a cryptorchid stallion.
A 16-year-old cryptorchid Quarter House with colic had a large, lobulated soft-tissue mass to the left of the pelvic inlet. At surgery, 2 large multilobulated pedunculated masses were removed. A large blood vessel enveloped by one of the masses was damaged, and the horse exsanguinated. Postmortem examination of the abdomen revealed the masses to be malignant seminoma, with multiple sites of metastasis.
Smith
B L
BL
Department of Large Animal Medicine, Texas Veterinary Medical Center, Texas A&M University, College Station 77843.
Morton
L D
LD
Watkins
J P
JP
Taylor
T S
TS
Storts
R W
RW
D000818:Animals; D003456:Cryptorchidism / Q000150:complications / Q000662:veterinary*; D004407:Dysgerminoma / Q000209:etiology / Q000473:pathology / Q000662:veterinary*; D006734:Horse Diseases / Q000209:etiology* / Q000473:pathology; D006736:Horses; D008297:Male; D013736:Testicular Neoplasms / Q000209:etiology / Q000473:pathology / Q000662:veterinary*