2024 Volume 66 Issue 5 Pages 1221-1227
A 72-year-old woman who underwent right breast-conserving surgery for breast cancer presented for evaluation of a stomach tumor, which was detected during a routine -CT examination for breast cancer recurrence. Contrast-enhanced CT revealed a gastric antral submucosal tumor (SMT), showing strong and prolonged enhancements during the portal venous and delayed phases, respectively, and an SMT in the upper gastric body, showing delayed enhancement and accompanied by non-contrast areas. On EUS, the antral SMT appeared as a well-circumscribed, oval, hyperechoic mass originating from the muscularis propria, whereas the upper gastric body SMT appeared as an oval, heterogeneous, hypo-echoic mass with a-echoic areas originating from the muscularis propria. EUS-guided fine needle biopsy (EUS-FNB) was performed to establish the histopathological diagnosis. Preoperatively, antral SMT was diagnosed as a gastric glomus tumor (GGT) and upper gastric body SMT as a gastrointestinal stromal tumor (GIST). Laparoscopic and endoscopic cooperative surgery was performed for the GGT and laparoscopic partial gastrectomy for the GIST. Here, we present a detailed comparison of imaging findings between GGT and GIST; therefore, our study significantly contributes to the literature. We report a rare case of GGT presenting concomitantly with GIST that was successfully diagnosed preoperatively using EUS-FNB.
