A 26 year-old male patient from Kien Giang province with chief complain: nausea and mild epigastric discomfort for 3 years, no vomiting, no fever. Family and his past medical history : nothing abnormal detectable. Physical examination: mild epigastric tenderness, no mass in the epigastric area.
Undergoing of gastroendoscopy he was revealed a submucosa mass in the antrum which was confirmed by CT; it was a fluid-attenuation cystic mass in close with the stomach wall but report of CT cannot rule out a heterotropic pancreas.
Ultrasound detected an 27x17mm intragastric cyst which adhered the greater curvature. The cyst wall had 2 layers: echogenic inner mucosal lining and hypoechoic outer rim which was contiguous with the muscular layer of the stomach. So we met a muscular rim sign of a non-communicating GDC (gastric duplication cyst) in adult.
Operation at BD Hospital confirmed the non communicating GDC.
Wait for microscopic result.