title: Gastric concretion forming around a suture nidus and mimicking a gastric polyp on radiographs.
abstract: A small gastric mass was detected by upper GI X-ray series and found at endoscopy to be a concretion hanging from a suture at a previous gastrostomy site. The suture was clipped and the concretion was removed endoscopically. Sutures protruding into the gastric lumen may serve as a nidus for the formation of concretions and because of their fixed position, these masses may mimic neoplasms on upper GI X-rays.
mesh_terms: D003937:Diagnosis, Differential; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011127:Polyps / Q000000981:diagnostic imaging*; D011859:Radiography; D013272:Stomach Diseases / Q000000981:diagnostic imaging*; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*; D013537:Sutures