title: Pyloric obstruction by ectopic liver tissue.
mesh_terms: D002828:Choristoma / Q000473:pathology*; D006801:Humans; D007231:Infant, Newborn; D008099:Liver; D008297:Male; D011707:Pyloric Stenosis / Q000209:etiology*; D013274:Stomach Neoplasms / Q000473:pathology*