A CASE OF SO-CALLED DOUBLE PYLORUS, A FOLLOW-UP STUDY

Abstract

The authors experienced a case of so-called double pylorus. The patient is a 41-year-old male. He has been followed up endoscopically for these two years. During the followup period, ulcers were recognized on the both sides of the fistula, that is, in the stomach and in the duodenum. Apart from the significance of ulcers as the pathogenesis of double pylorus, the authors think that ulcers appear more often in the region near the fistula. So-called U-turn technique with a small-caliber panendoscope in the duodenal cap is very useful to confirm the presence of fistula and to make a diagnosis of double pylorus. Ninety-three cases of double pylorus including this case are reported up to the present. On the literatures, the authors investigated the feature of this disorder in some aspects.