Atypical proliferative endometrioid tumor of ovary

Abstract

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.

Genetic analysis and phosphoinositide�3‑kinase/protein kinase B signaling pathway status in ovarian endometrioid borderline tumor samples

“…There are few previous studies investigating EBTs due to their rarity; to the best of our knowledge, only two series and one case study have been previously reported ( 24 – 26 ). EBTs were observed in the right and left ovaries in 2–5% of cases at the time of diagnosis in these studies, and the predominant growth pattern was adenofibromatous in both case series, as well as in case 1 of the present study.…”

Pulmonary thromboembolism secondary to pelvic thrombosis related to giant ovarian tumor

“…The WHO classification of 2014 divides the surface epithelial tumors of the ovary into benign, borderline and malignant and the different histological types into serous, mucinous, endometrioid, clear cells, Brenner and seromucinous 10. Borderline ovarian tumors are characterized by a smaller aggressiveness when compared with other epithelial forms11 and are currently defined “atypical proliferative epithelial tumors.” This type of tumor usually occurs in the third or fourth decade and is unilateral in 80% of cases 12. According to the tumor biology and behavior, the prognosis is usually favorable, but life-threatening outcomes may be observed by the compression on the surrounding structures when the tumor reaches large dimensions, leading to unexpected death.…”