2000 Volume 57 Issue 2 Pages 92-93
We reported a 58-year-old female with a double pylorus, who had been treated with prednisolone because of rheumatoid arthritis. The first endoscopic examination showed a gastric ulcer on the posterior wall of the prepylorus. Two years later, the second examination showed an accessory opening and gastric ulcer on the posterior wall of the prepylorus. The third examination performed two years later showed an enlarged accessory opening and gastric ulcer on the posterior wall of the prepylorus. One year later at the fourth examination (five years after the initial examination) the double pylorus fused and formed a large single pylorus. Eight years after the initial examination, a gastric ulcer was observed on the same position. Of 118 cases of double pylorus reported in Japan, 15 cases developed a single pylorus. The fistula was closed in 4 cases and fused in 11 cases of 15 cases.
