Ulcerated benign jejunal gastrointestinal stromal tumor causing gastrointestinal bleeding: A case report

Figure 1 Imaging examinations. A: Double-balloon enteroscopy image showing a subepithelial lesion (2 cm × 1.5 cm) approximately 150 cm distal to the duodenojejunal flexure and an overlying ulcer without any active bleeding; B: A contrast-enhanced computed tomography abdomen scan revealing a well-defined, round-shaped, homogenously enhancing solid exophytic lesion (30 mm × 22 mm × 26 mm) arising from the proximal jejunal loops without any obvious adjacent organ involvement, internal necrotic foci or calcification.

Figure 2 Histopathological image of postoperative jejunal specimen. A: A 10× view of a submucosal tumor comprising spindle cells arranged in a long, fascicular pattern; B: A 40× view of spindle cells showing minimal pleomorphism mild hyperchromasia, low mitotic index, without any necrosis or epithelioid cells.

Figure 3 Immunohistochemical profile of postoperative jejunal specimen showing diffuse immunopositivity. A: CD117; B: DOG1 markers.