Abstract
A 32-year-old woman developed epigastralgia ; on EGD examination, a swollen submucosal tumor (SMT) located at the gastric body was noted. Subsequently the patient's symptom improved ; the EGD examination done at that time revealed a collapsed SMT. The EUS showed that the SMT was a hypoechoic heterogeneous mass located in the fourth layer of the gastric wall. However, the patient's epigastralgia recurred, and on re-examination, a swollen SMT was found. A laparoscopic-assisted partial gastrectomy was done. On histology, a diagnosis of a gastric duplication was made. In this paper, we report this rare case with unique EUS findings and review the literature.