[The interstitial pregnancy. Report of three observations (author's transl)].

The recent occurrence at the Port-Royal obstetrics and gynaecology center of three cases of interstitial pregnancy out of a total number of 208 ectopic pregnancies give us the opportunity to discuss the diagnosis and present management of the rarest form of tubal pregnancies. The diagnosis is always difficult. Nowadays, thanks to the use of echography and especially of laparoscopy, interstitial pregnancies can be detected earlier. Thus the precocity of the diagnosis should permit a conservative surgical treatment. Hysterectomy should not be considered but in very special cases.