Gastric pseudotumor due to lesser peritoneal sac abscess.
D000038:Abscess / Q000000981:diagnostic imaging* / Q000601:surgery; D003937:Diagnosis, Differential; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D011859:Radiography; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*