title: Submucosal arterial malformation of the stomach diagnosed endoscopically.
mesh_terms: D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000601:surgery*; D005753:Gastric Mucosa / Q000098:blood supply*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D012422:Rupture, Spontaneous