A smooth brown snake-skin like hemispherical bulge in the stomach

A 47-year-old Chinese female was admitted for epigastric discomfort and the gastric endoscopy showed an approximately 3 cm hemispherical mucosal bulge, with a smooth brown snake-skin like surface, on the anterior wall of the lower gastric corpus (Figure 1). The Endoscopic ultrasonography (EUS) showed he tumor originated from muscularis propria and presented as a round lobulated hypoechoic lesion with regular clear margins. There was an irregular echo-free necrosis in the lesion, with an unabundant blood supply and an integral serosa