Mahmoud A. Khalifa

Endometriosis is defined by the presence of endometrial glands and stroma outside the uterine cavity. Although it typically presents within the pelvis, extragenital manifestations are well documented with gastrointestinal (GI) involvement b…

PURPOSE: To evaluate exemestane, an aromatase inhibitor, as a preventive intervention for endometrial cancer. EXPERIMENTAL DESIGN: This is a multicenter, single-arm, "window of opportunity" pilot study of exemestane (25 mg daily for 21-42 …

•Mixed neuroendocrine/non-neuroendocrine neoplasm (MiNEN) of gastrointestinal lineage arising in an ovarian mature cystic teratoma is extremely rare.•It is important to differentiate the gastrointestinal-type adenocarcinoma arising along wi…

Primary incisional carcinoma (PIC) is a rare, delayed complication of surgery, usually attributed to the malignant transformation of endometriosis. We report a case of incisional carcinoma with nodal metastases in a 55-year-old woman, 18 ye…

The coexistence of endometrial adenocarcinoma and adenomyosis in the same uterus is a common phenomenon. In many of such affected patients foci of adenomyosis could also be colonized by adenocarcinoma. The various permutations arising from …

There is a controversy about whether endometriosis-associated ovarian cancer (EAOC) might represent a different entity from the corresponding ovarian cancer occurring de novo, in the absence of endometriosis. This study investigated the cli…

OBJECTIVE: To evaluate health care provider adherence to the surgical protocol endorsed by the National Comprehensive Cancer Network and the American College of Obstetricians and Gynecologists at the time of risk-reducing salpingo-oophorect…

•Mullerian Carcinosarcoma (MC) is one of the rarest endometriosis associated malignancies (EAM).•Atypical endometriosis can undergo variety of metaplastic changes causing diagnostic dilemma.•Atypical endometriosis possibly represents a prec…

OBJECTIVE: The objective of our study was to determine whether applying specific diagnostic criteria to the interpretation of sonohysterography would improve the diagnostic accuracy of the interpretation. MATERIALS AND METHODS: This retros…

Adenomyosis is commonly seen in association with endometrial adenocarcinoma where it may or may not be involved by malignancy. This study of grade 1 endometrioid adenocarcinoma investigates whether patients with cancer-positive adenomyosis …

This study investigated the expression of poly(adenosine diphosphate-ribose) polymerase (PARP) in a cohort of ovarian serous carcinomas by immunohistochemistry with regard to outcome, clinicopathologic parameters, proliferation as assessed …