نتایج جستجو برای: ovarian tumors
تعداد نتایج: 253465 فیلتر نتایج به سال:
The incidence of ovarian cancer depends on the ethnicity and geographical area. Menopausal status is a well-known risk factor for ovarian cancer and most cases occur after menopause in Caucasians. However, it is less clear how the status of menopause or age at diagnosis is associated with ovarian cancer including its subtypes in Chinese women. Data on 1,283 women with primary malignant or borde...
BACKGROUND Although BRCA1 and BRCA2 play important roles in hereditary ovarian cancers, the extent of their role in sporadic ovarian cancers and their mechanisms of inactivation are not yet well understood. Our goal was to characterize BRCA2 mutations and mRNA expression in a group of ovarian tumors previously evaluated for BRCA1 mutations and mRNA expression. METHODS The tumors of 92 unrelat...
Ovarian metastases can account for as many as 30–40% of all ovarian malignancies1–3. The potential for metastatic tumors to mimic the clinical and morphologic appearance of primary ovarian tumors is well known to surgical pathologists2. Correct diagnosis and successful management of patients with these diseases often rely on the degree of distinction between primary and metastatic tumors. Most ...
We have previously demonstrated the inverse correlation of Jab1 and p27 proteins, as well as prognostic significance in epithelial ovarian carcinomas. In order to investigate Skp2 protein and its correlation with Jab1, p27, and clinical outcome, we evaluated Skp2 expression in a group of epithelial ovarian tumors. Immunohistochemical analysis was performed on 80 cases of ovarian tumors (33 beni...
Ovarian neoplasms have become increasingly important not only because of the large variety of neoplastic entities but more because they have gradually increased the mortality rate due to female genital cancers. A total of 120 cases of ovarian tumors were studied at the Department of Pathology, Konaseema Institute of Medical Sciences, Amalapuram, India, during the period of March 2005 to March 2...
Epithelial ovarian cancer comprises three major histolÃ3gica! subtypes (serous, mucinous, and endometrioid), and it is becoming clear that the developmental pathways for these subtypes are fundamentally different. In particular, endometrioid ovarian cancers probably arise by the malig nant transformation of ectopie endometrial implants called endometriosis and not the ovarian surface epithelium...
OBJECTIVE The majority of ovarian tumors in girls and young women are nonepithelial in origin. The etiology of nonepithelial ovarian tumors remains largely unknown, and intrauterine exposures may play an important role. We examined the association of perinatal factors with risk of nonepithelial ovarian tumors in girls and young women. METHODS National cohort study of 1,536,057 women born in S...
Angiogenesis is a critical factor in tumor growth and metastasis, and microvessel density (MVD) was an important parameter for assessing vessels in tumors. However, radiologic assessment of tumor vascularity is not yet well established. In our study, we aimed at investigating the efficacy of contrast-enhanced ultrasonography (CEUS) in exploring the vascularity of the ovarian tumors or tumor-lik...
BACKGROUND In many tumors including ovarian cancer, cell proliferation and apoptosis are important in pathogenesis and there are many alterations in most of the genes related to the cell cycle. This study was designed to evaluate immunohistochemistry with apoptotic-antiapoptotic proteins (p53, p21, bax, and bcl-2), c-kit, telomerase, and metallothionein as a diagnostic aid in typing of benign, ...
Introduction: Ovarian granulosa tumors are malignant belonging to the group of sexual cord and stromal tumors. Two histological forms distinguished: a form adult which is most common, much rarer juvenile form. Case Report: Our study retrospective concerned 25 cases ovarian tumor, collected at Mohammed VI center for treatment gynecological mammary cancers Ibn Rochd University Hospital in Casabla...
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