A gastrointestinal stromal tumor of the third portion of the duodenum treated by wedge resection: A case report

Figure 1 Computed tomography showed a well-demarcated enhancing tumor 4. 0 cm in diameter in the third portion of the duodenum (white arrow).

Figure 2 An endophytic gastrointestinal stromal tumor of the third portion of the duodenum (white arrow).

Figure 3 Local limited wedge resection was subsequently performed with clear margins. Surrounding bowel can be seen to be healthy, allowing for a primary anastomosis.

Figure 4 Wedge resection with primary closure.

Figure 5 Histology. A: Submucosal tumor tissue is located (hematoxylin-eosin stain, original magnification, × 5); B: Spindle tumor tissue is composed of cells (hematoxylin-eosin stain, original magnification, × 10); C: Tumor tissue widely seen moderately strong staining of CD117 (CD117, original magnification, × 20); D: Tumor tissue widely seen SMA staining (SMA, original magnification, × 5); E: Tumor tissue, common, poor, S-100 staining is observed (S-100, original magnification, × 20).