title: Pyloric channel duplication in a newborn infant.
abstract: This is the first reported case of pyloric channel duplication demonstrated preoperatively by endoscopy and contrast radiography. Endoscopically, the lesion resembled a mucosal flap overlying the pyloric orifice. On radiography the lesion presented as a polypoidal filling defect in the duodenal bulb. The infant had, in addition, postduplication stress ulcer.
mesh_terms: D000328:Adult; D004381:Duodenal Ulcer / Q000209:etiology; D004724:Endoscopy; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology; D011708:Pylorus / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery