case_images: PMC11607121_01
case_images: Upper gastrointestinal endoscopy view of the lesser gastric curvature. A subepithelial lesion is about 2 cm in diameter was seen
case_images: cjim-16-169-g001.jpg
case_images: PMC11607121_01_cjim-16-169-g001.jpg
case_images: F1
case_images: At upper gastrointestinal endoscopy, a subepithelial lesion of about 2 cm was seen at lesser gastric curvature (figure 1).
case_images: PMC11607121_02
case_images: Endoscopic ultrasonography of the 25*19 mm lesion at lesser gastric curvature. This lesion occurred in the muscularis propria layer without any obvious lymph nodes, suggesting that it may be GIST
case_images: cjim-16-169-g002.jpg
case_images: PMC11607121_02_cjim-16-169-g002.jpg
case_images: F2
case_images: Three laparoscopic ports were placed in the peritoneal cavity while the patient was supine under general anesthesia (figure 2).
case_images: PMC11607121_03
case_images: Endoscope-assisted laparoscopic e-bloc resection. A) A laparoscopy and endoscopy are used to locate the tumor; a pair of stay sutures are placed laparoscopically on the tumor; B) When the stay sutures are tractioned, the gastric wall is tented by the sutures; C) A stapler is used under endoscopic control to enclose the tumor; D) The stomach is fully resected with everted staples (22).
case_images: cjim-16-169-g003.jpg
case_images: PMC11607121_03_cjim-16-169-g003.jpg
case_images: F3
case_images: The next day the patient was discharged in good general condition without any symptoms (figure 3). 
case_images: Microphotograph of gastric mass; Spindle cell lesion arranged in fascicles, (H&E stain x100)
case_images: cjim-16-169-g004.jpg
case_images: PMC11607121_03_cjim-16-169-g004.jpg
case_images: F4
case_images: The cytoplasm of the spindle cell lesion was characterized by faintly eosinophilic cytoplasm and elongated nuclei, without significant nuclear pleomorphism (figure 4).
case_images: A) Immunohistochemistry indicated strongly diffuse staining for C-kit; and B) CD34 while C) negative results were observed for S-100, SMA and Desmin, low ki 67 proliferative index, less than 5%.
case_images: cjim-16-169-g005.jpg
case_images: PMC11607121_03_cjim-16-169-g005.jpg
case_images: F5
case_images: Immunohistochemistry study showed strongly diffuse positive results for C-kit (CD117) and CD34 in tumoral cells, whereas alpha-smooth muscle actin (SMA), Desmin and S-100 protein were negative (figure 5A, 5B). Ki-67 expression showed low proliferative index (less than 5%) (figure 5C).