title: Usual and unusual causes of pediatric gastric outlet obstruction.
abstract: Gastric outlet obstruction in children encompasses a spectrum of disorders that extends beyond hypertrophic pyloric stenosis. Each condition can result in the clinical syndrome of persistent nonbilious vomiting, which can progress to dehydration and electrolyte imbalances. This paper reviews the spectrum of both the common and uncommon entities that cause partial or complete gastric outlet obstruction and their imaging appearances. The correct diagnosis of those with gastric outlet obstruction can be achieved by combining clinical presentation with appropriate imaging, leading to optimal and timely patient management.
authors.affiliation: Department of Radiology, University of Washington Medical Center, Seattle, WA, USA.
authors.forename: Jeffrey P
authors.initials: JP
authors.lastname: Otjen
authors.forename: Ramesh S
authors.initials: RS
authors.lastname: Iyer
authors.forename: Grace S
authors.initials: GS
authors.lastname: Phillips
authors.forename: Marguerite T
authors.initials: MT
authors.lastname: Parisi
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003952:Diagnostic Imaging / Q000379:methods; D020252:Gastric Antral Vascular Ectasia / Q000150:complications* / Q000175:diagnosis; D017219:Gastric Outlet Obstruction / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D046248:Pyloric Stenosis, Hypertrophic / Q000150:complications* / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000150:complications* / Q000175:diagnosis; D013277:Stomach Volvulus / Q000150:complications* / Q000175:diagnosis