Goldberg M I, Belinson J L, Hutson E D, Nordqvist S R
Obstet Gynecol. 1978 Jan;51(1 Suppl):38s-40s.
Malignant transformation in a focus of endometriosis is uncommon (less than 1%). The ovary is by far the most common site, followed in frequency by the rectovaginal septum. A case of clear cell adenocarcinoma arising in endometriosis of the rectovaginal septum is presented and its pathogenesis discussed.