Distant endometriosis

Extragenital endometriosis is rare in any population, and almost all publications are case reports or retrospective reviews. In 1990 all publications that could be identified in English, German, French, Spanish, Italian, Dutch, Polish as well as the five Scandinavian languages were reviewed and resulted in a Swedish monograph, based on 954 publications.1 Since then, several more cases have been published, but no epidemiologic study has been performed, showing the incidence of different types of extragenital endometriosis. As each type of extragenital endometriosis is rare, except bowel and urinary tract endometriosis, no center and no specialist will ever collect large series of any specific type. Thus, no evidence-based data are available and there is no consensus concerning the treatment of these forms of endometriosis.