Fig. 2

Endoscopic and endoscopic ultrasound findings. a An elevated lesion similar to a submucosal tumor was observed at the greater curvature of the stomach (arrows). b An 8 Fr catheter was placed in the intra-abdominal abscess before fistulography. c Fistulography showed connection between the intra-abdominal abscess (white arrow) and gastric submucosal abscess (blue arrow). Size of gastric submucosal abscess was larger than that of intra-abdominal abscess. d The gastric submucosal abscess was accessed under guidance using a 19-gauge fine-needle aspiration needle (arrows)