Fig. 1

a Abdominal ultrasonography revealing a well-circumscribed hypoechoic mass, contiguous with the proper muscle layer, approximately 70 mm in size, located at the middle stomach on the lesser curve. b, c Contrast-enhanced CT of the abdomen showing an extraluminal tumor with heterogeneous enhancement at the middle stomach on the lesser curve (white arrowheads), accompanied with one swollen lymph node approximately 10 mm in size (yellow arrow) and several small lymph nodes in the perigastric region. d Endoscopy showing compression of the anterior wall of the gastric body along with normal mucosa