title: Pyloroduodenal duplication cyst.
abstract: Pyloroduodenal duplication cysts are an extremely rare congenital anomaly, whose clinical signs and symptoms often mimic those of hypertrophic pyloric stenosis. This radiographic analysis revealed configurational changes consistent with a large extrinsic mass rather than muscular hypertrophy, thus leading to the correct preoperative diagnosis.
mesh_terms: D003560:Cysts / Q000151:congenital* / Q000000981:diagnostic imaging / Q000601:surgery; D003937:Diagnosis, Differential; D004378:Duodenal Diseases / Q000151:congenital* / Q000000981:diagnostic imaging / Q000601:surgery; D004386:Duodenum / Q000002:abnormalities; D005260:Female; D006801:Humans; D006984:Hypertrophy; D007223:Infant; D011300:Preoperative Care; D011706:Pyloric Antrum / Q000002:abnormalities; D011707:Pyloric Stenosis / Q000175:diagnosis; D011859:Radiography; D013272:Stomach Diseases / Q000151:congenital* / Q000000981:diagnostic imaging / Q000601:surgery