نتایج جستجو برای: ovarian tumors

تعداد نتایج: 253465  

2017
Fang Shen Shouzhen Chen Yifei Gao Xujing Dai Qi Chen

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...

Journal: :Journal of the National Cancer Institute 2002
Jeffrey L Hilton John P Geisler Jennifer A Rathe Melanie A Hattermann-Zogg Barry DeYoung Richard E Buller

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...

2008
Chuan-Chi Shih Yuh-Cheng Yang Jerry Cheng-Yen Lai Yu-Hui Huang Tao-Yeuan Wang Kung-Liahng Wang

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 ...

2006
LI SUI YOUYI DONG YASUO WATANABE FUMINORI YAMAGUCHI KATSUYOSHI SUGIMOTO MASAAKI TOKUDA

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...

Journal: :Nepal Medical College journal : NMCJ 2010
G G Swamy N Satyanarayana

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...

2006
Koshiro Obata Sarah J. Morland Richard H. Watson Andrew Hitchcock Georgia Chenevix-Trench Eric J. Thomas Ian G. Campbell

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...

Journal: :Gynecologic oncology 2014
Weiva Sieh Kristina Sundquist Jan Sundquist Marilyn A Winkleby Casey Crump

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...

2011
Junyan Wang Faqin Lv Xiang Fei Qiuli Cui Longxia Wang Xuewen Gao Zhixian Yuan Qian Lin Yali Lv Aijun Liu

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...

2012
Hatice Ozer GoncaImir Yenicesu Sema Arici Meral Cetin Ersin Tuncer Ali Cetin

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, ...

Journal: :Journal of Case Reports and Images in Obstetrics and Gynecology 2023

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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