Colonic gastrointestinal stromal tumor resulting in recurrent colic and hematochezia in a warmblood gelding.
A 14-year-old Trakehner gelding was evaluated for recurrent colic, with episodes occurring over 1 year. Signs were consistent with intermittent ascending colon obstruction and hematochezia. Necropsy examination revealed an ulcerated mass extending into the lumen of the right dorsal ascending colon. Gross and histologic appearance and immunoreactivity to c-kit (CD117), desmin, vimentin, and smooth muscle actin, were consistent with a diagnosis of gastrointestinal stromal tumor.
Colorado State University, Department of Clinical Sciences, 300 West Drake Road, Fort Collins, Colorado 80523, USA (Malberg, Hackett); North Dakota State University, Veterinary Diagnostic Laboratory, Dept. 7691, PO Box 6050, Fargo, North Dakota 58108, USA (Webb).
Jessica A
JA
Malberg
Colorado State University, Department of Clinical Sciences, 300 West Drake Road, Fort Collins, Colorado 80523, USA (Malberg, Hackett); North Dakota State University, Veterinary Diagnostic Laboratory, Dept. 7691, PO Box 6050, Fargo, North Dakota 58108, USA (Webb).
Brett T
BT
Webb
Colorado State University, Department of Clinical Sciences, 300 West Drake Road, Fort Collins, Colorado 80523, USA (Malberg, Hackett); North Dakota State University, Veterinary Diagnostic Laboratory, Dept. 7691, PO Box 6050, Fargo, North Dakota 58108, USA (Webb).
Eileen S
ES
Hackett
D000818:Animals; D003085:Colic / Q000209:etiology / Q000662:veterinary*; D003110:Colonic Neoplasms / Q000473:pathology / Q000662:veterinary*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology / Q000662:veterinary*; D046152:Gastrointestinal Stromal Tumors / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D006734:Horse Diseases / Q000175:diagnosis* / Q000473:pathology; D006736:Horses; D008297:Male