DOI: 10.36347/sasjm.2022.v08i02.010

Pages: 114-116

Gastrointestinal stromal tumor is, by definition, a mesenchymal tumor that develops at the expense of the digestive tract. Quite rare, represents 0.1-3% of gastrointestinal malignancies. These tumors are more commonly located in the stomach or small intestine than elsewhere in the abdomen. They are derived from Cajal cells or a precursor thereof, and are typically of the CD117 / KIT + (95%) and DOG-1 + (95%) phenotype. They very frequently exhibit activating mutations of the genes encoding the KIT or PDGFRA tyrosine kinase receptors. They can occur at any age, but mainly in middle-aged and elderly people. We report the case of a 59-year-old patient with a history of femoroiliac thrombosis treated by implantation of a prosthesis in 2018 with long-term antiplatelet therapy, morbid obesity operated on in 2020, the procedure consisted of Sleeve gastrectomy, hyperparathyroidism on a single lower left adenoma, resected with good control of PTH postoperatively. The patient was known to have a gastric lesion that could not be resected during the sleeve gastrectomy. Monitoring showed stability in size of the gastric lesion on endoscopic control, hence the decision to perform a surgical exploration with an intraoperative endoscopy before deciding on the nature of the procedure to be performed on the gastric stump. The procedure consisted of an atypical resection of the tumor with satisfactory endoscopic intraoperative control. The patient progressed well postoperatively, discharge on analgesics at day 3 postoperative.