Fig. 2
Positron emission tomography (PET) showed significant fluorodeoxyglucose accumulation (FDG) with a maximum standardized uptake value of 10.9 (a). Gastrointestinal endoscopic examination showed a smooth and protrusive lesion at the great curvature wall of the gastric body (b). Endoscopic ultrasound showed a hypoechoic exogenous mass and size of about 2.2 × 2.0 cm in the post wall of the stomach (c). Preoperative abdominal computed tomography scan showed an occupying lesion in the gastric wall (d). The arrow indicates the continuous mass on the stomach wall