Abstract
A 70-year-old female visited to our hospital with prolonged symptoms of slight diarrhea for the past six years. A diagnosis of sigmoid-appendiceal fistula was made with, barium enema and colonoscopic examinations ; however, the causes of fistula were not identified. The patient did not undergo surgical treatment. However, symptoms improved with administration of Lactobacillus bif idus. Enteric-appendiceal fistula has been reported to be rare, and only 12 cases have been documented in Japan. In enteric-appendiceal fistula, sigmoid-appendiceal fistula with less symptoms is considered to be extremely rare. We hereby report a case of long standing sigmoid-appendiceal fistula with less symptoms for the past six years.
