title: Hypertrophied antral-pyloric fold: reassessment of radiographic findings in 40 patients.
abstract: OBJECTIVE
  To reassess the findings of a hypertrophied antral-pyloric fold on double-contrast barium studies.
  
  
  METHODS
  A search of radiologic files resulted in recovery of records of 1,796 patients with findings of antral gastritis on double-contrast upper gastrointestinal studies. According to radiologic reports, 40 patients had a hypertrophied antral-pyloric fold. The radiographs were reviewed retrospectively to determine the size, location, and morphologic features of the folds. Clinical, radiologic, and/or endoscopic follow-up data were obtained in 22 patients.
  
  
  RESULTS
  All but two patients were symptomatic, and all but one responded to medical treatment. The hypertrophied antral-pyloric fold was located on the lesser curvature of the distal antrum in all patients and extended to the pylorus in 25 (62%) and into the base of the duodenal bulb in 15 (38%). The fold appeared as a smooth or slightly lobulated submucosal mass in 37 (92%) patients and as a plaquelike lesion in three (8%). Other radiographic findings of antral gastritis were present in 26 (65%) patients. In nine patients who underwent endoscopy, endoscopic and/or histologic findings of antral gastritis were present in five, but none had evidence of tumor.
  
  
  CONCLUSIONS
  A hypertrophied antral-pyloric fold may be a sign of antral gastritis that is associated with characteristic radiographic findings. Endoscopy and biopsy may not be warranted when lesions with features typical of a hypertrophied antral-pyloric fold are seen on double-contrast barium studies.
authors.affiliation: Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104, USA.
authors.forename: R
authors.initials: R
authors.lastname: Arora
authors.forename: M S
authors.initials: MS
authors.lastname: Levine
authors.forename: R T
authors.initials: RT
authors.lastname: Harvey
authors.forename: I
authors.initials: I
authors.lastname: Laufer
authors.forename: S E
authors.initials: SE
authors.lastname: Rubesin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D006984:Hypertrophy; D008297:Male; D008875:Middle Aged; D011706:Pyloric Antrum / Q000000981:diagnostic imaging* / Q000473:pathology*; D011859:Radiography; D012189:Retrospective Studies