[Pathology of the isthmo-interstitial segment of the oviduct, tubal pregnancy and microsurgery].

With regard to the retrospective and prospective analysis of two series of patients, a first series concerning 180 patients presenting pathology of the isthmo-interstitial segment of the oviduct, and a second series concerning 149 patients operated on for extrauterine pregnancy, the authors have established the responsibility of the pathology of the proximal segment in a very large number of cases of sterility regarded as inexplicable, and in a certain number of cases of extrauterine pregnancy. Medical treatment with danazol gives remarkable results. In cases of failure of medical treatment, microsurgery involves isthmo-ostial reimplantation.