Cases reported "Carcinoma, Endometrioid"

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11/12. Endometrioid adenocarcinoma of the ovary and long-term tamoxifen therapy: a coincidence or a cause for concern?

    In recent years, the extensive usage of tamoxifen in patients with breast cancer has led us to acquire a great deal of knowledge of its effects on various organs in the gynecological system, especially the effect on the endometrium and the increased risk of endometrial cancer. Information on the possible potential carcinogenic effect of tamoxifen on the ovary, however, has been limited, mainly because of the overall low incidence of ovarian carcinoma. In addition, there is the confounding variable posed by the diverse here-ditary breast and ovarian cancer syndromes which tend to occur in a younger age group. Here, we present a case of a postmenopausal woman who was treated for six years with tamoxifen for breast cancer before being diagnosed with endometrioid carcinoma of the ovary. We believe that given the age of the patient and the duration of tamoxifen use, the occurrence of ovarian endometrioid carcinoma may be associated with long-term tamoxifen use.
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12/12. Ovarian endometrioid adenocarcinoma with ectopic production of alpha-fetoprotein.

    alpha-Fetoprotein (AFP) is well known as a tumor marker of ovarian endodermal sinus tumor or embryonal carcinoma in gynecological malignancies. However, AFP production is extremely rare in ovarian epithelial cancers. Here we report a case of a 53-year-old woman with an AFP-producing ovarian endometrioid adenocarcinoma. The serum AFP level was elevated up to 2759 ng/ml preoperatively, with a subsequent decrease to the normal range after treatment. Histological examination of the tumor revealed a well-differentiated endometrioid adenocarcinoma with small foci of clear cell components. None of endodermal sinus tumor, hepatoid carcinoma, or embryonal carcinoma components were observed. Immunohistochemical analysis revealed that AFP was expressed in the cytoplasm of the endometrioid glandular lesions, but not in the clear cell components. This is probably the first case of a pure type of ovarian endometrioid adenocarcinoma with significant levels of AFP expression.
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keywords = gynecologic
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