Gelzayd E A, Maas L C
South Med J. 1981 Mar;74(3):298-9. doi: 10.1097/00007611-198103000-00012.
A retrospective review of five patients with Barrett's esophagus revealed three with an associated active duodenal ulcer. Two patients also had adrenocarcinoma of the esophagus. Any patient with prolonged gastroesophageal reflux should have careful radiologic and endoscopic evaluation of the entire upper gastrointestinal tract.
