Atypical proliferative endometrioid tumor of ovary: Report of a rare case

Borderline ovarian tumors represent 10-20% of epithelial ovarian neoplasms that typically have an excellent prognosis. Both the oncological behavior of this group of tumors and also the diagnostic histological criteria are intermediate between the specific criteria of benign and malignant. They usually occur in the third to fourth decade of women's lives and are limited to the ovary in 80% of cases. Atypical proliferative or borderline ovarian tumors constitute a group of epithelial tumors with an excellent prognosis due to the low aggressiveness, microscopic examination is mandatory in order to establish an accurate histological diagnosis in all cases of borderline ovarian tumors and to differentiate from well differentiated adenocarcinoma. We report a case of a 45 year old female who presented with irregular bleeding per vaginum and underwent hysterectomy with bilateral salpingo-oophorectomy. Atypical proliferative endometrioid tumor of the left ovary was an incidental finding, which is a very rare occurrence.