Alimentary-associated carcinomas in five Vietnamese potbellied pigs.
METHODS
5 Vietnamese potbellied pigs were evaluated for abdominal distress that had not responded to medical treatment (4 pigs) or a draining tract of the cranial abdomen of unknown duration (1 pig).


RESULTS
Clinical signs in the pigs included anorexia, vomiting, and constipation. Physical examination revealed a palpable abdominal mass in all pigs. Radiography revealed distended loops of small intestine in 2 pigs.


RESULTS
3 pigs were treated successfully with wide-margin excision of the abdominal masses, and 2 were euthanized. Primary tumors were diagnosed at necropsy or through histologic evaluation of biopsy specimens obtained during surgery. Types of tumor included cholangiocellular carcinoma, transmural gastric carcinoma, small intestinal adenocarcinoma, metastatic hepatocellular carcinoma, and carcinoma. The tumors involved the stomach, small intestine, spiral colon, liver, and gall bladder. All 3 surgically treated pigs survived at least 9 months after surgery.


CONCLUSIONS
Although rare, neoplasia of the alimentary system should be considered among the differential diagnoses for potbellied pigs with signs of abdominal distress. Wide-margin excision of the neoplastic tissue may result in a good outcome in affected pigs.
McCoy
Annette M
AM
Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA. mccoyann@colostate.edu
Hackett
Eileen S
ES
Callan
Robert J
RJ
Powers
Barbara E
BE
D000818:Animals; D002277:Carcinoma / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D008297:Male; D013552:Swine; D013553:Swine Diseases / Q000473:pathology* / Q000601:surgery