title: Prolonged retention of foreign bodies in the stomach.
abstract: Two patients had prolonged retention of small round foreign bodies in the stomach. Both patients had a history of a pyloromyotomy. Radiographic examination revealed a prepyloric web in one patient and a deformed pylorus in the other. These findings were confirmed by surgery.
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011708:Pylorus / Q000601:surgery; D011859:Radiography; D013270:Stomach; D013997:Time Factors