title: Retroperitoneal emphysema complicating through-the-scope pyloric dilation.
authors.forename: L W
authors.initials: LW
authors.lastname: Chow
authors.forename: C L
authors.initials: CL
authors.lastname: Ong
mesh_terms: D002404:Catheterization / Q000009:adverse effects*; D004378:Duodenal Diseases / Q000209:etiology; D004646:Emphysema / Q000209:etiology*; D005260:Female; D005773:Gastroscopy / Q000009:adverse effects*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology; D008875:Middle Aged; D011707:Pyloric Stenosis / Q000628:therapy*; D012187:Retroperitoneal Space