1. A rare case of extrauterine adenosarcoma arising in endometriosis of the rectovaginal septum 
Ricciarda Raffaelli, M.D., Elena Piazzola, M.D., Giovanni Zanconato, M.D., Luigi Fedele, M.D. 
Fertility and Sterility 
Volume 81, Issue 4, Pages (April 2004)
DOI: /j.fertnstert

2. Figure 1
Low-power micrograph of rectovaginal adenosarcoma showing a benign endometrial gland (top left) surrounded by an atypical, hypercellular stromal component. In the center of the specimen, a small vessel can be seen (hematoxylin and eosin; original magnification, ×40).
Raffaelli. Müllerian adenosarcoma in endometriosis. Fertil Steril 2004.
Fertility and Sterility  , DOI: ( /j.fertnstert )