Reconstruction surgery using a pediculated jejunal patch for a gastrointestinal stromal tumour originating from the proximal duodenum in a dog

Abstract

AbstractAn 11‐year‐old neutered male toy poodle was referred to our hospital due to a mass formation in the right cranial abdomen without any clinical signs. A gastrointestinal stromal tumour (GIST) was suspected based on diagnostic imaging and cytology. Imatinib was administered; however, the tumour size did not change, thus duodenal tumour resection was performed on Day 65. The tumour was on the antimesenteric border of the proximal duodenum; therefore, major and minor duodenal papillae were preserved, and the defect of the duodenum was reconstructed with a pediculated jejunal patch. The resected mass was histopathologically diagnosed as GIST with a clean margin. There were no serious postoperative complications associated with the obstruction of common bile duct and small intestine, and the patient's postoperative progress was good. These results suggest that duodenal reconstruction with a pediculated jejunal patch could be used for GIST in the proximal duodenum.