Fig. 1.

a Abdominal computed tomography (CT) revealed a solid extramural tumor situated at the lesser curvature of the lower body of the stomach (yellow arrow). The portion surrounded by white dotted line is hepatic hemangioma. b CT using foaming agent showed it more clearly. c The CT scan performed one year ago and d 4 years ago showed the tumor did not exist (white arrow). e Gastroscopy revealed submucosal tumor at the anterior side of the angle of the stomach. f Abdominal ultrasound sonography showed a low echoic mass measuring 15 mm in diameter existed in contact with the stomach. g Endoscopic ultrasound sonography (EUS) showed that the tumor of about 15 mm in diameter occurred from the fourth layer of the gastric wall and h the needle of EUS-guided fine needle aspiration biopsy (EUS-FNA) surely punctured to the tumor