Ovarian endometrioid carcinoma with an adenofibromatous pattern.

We report the case of a 66-year-old postmenopausal woman who underwent unilateral oophorectomy for an ovarian endometrioid carcinoma with an unusual adenofibromatous stromal reaction pattern. She is presently alive, well and without clinical evidence of tumour two years after surgery. Adenofibromatous or cystadenofibromatous reaction is a peculiar reactive ovarian stromal change most probably induced by the invading neoplastic epithelial cells. No definite conclusions have been reached regarding the prognostic significance of this special stromal tissue reaction in cases of endometrioid carcinoma of the ovary.