A mass seen under gastroscopy "disappeared" during laparotomy.

We describe here a case of 36-year-old man with a hepatic cavernous hemangioma that was misdiagnosed as a gastric submucosal tumor (SMT) with endoscopic ultrasound (EUS) and CT scan. On gastroscopy, a submucosal tumor was found on the cardia of the stomach. Based on EUS and abdominal CT scan, the lesion was diagnosed as a gastric duplication cyst. The patient underwent gastroscopy after receiving laparotomy at the median point of the abdomen. A spherical mass arising from the left triangular ligament of the liver region was found. There was no abnormal finding at the cardia of the stomach.