نتایج جستجو برای: ovary neoplasms
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Republished: mucinous tumours of appendix and ovary: an overview and evaluation of current practice.
Mucinous lesions of the appendix and ovary are commonly encountered in routine practice. There are several published classification schemes for appendiceal mucinous neoplasms with resultant inconsistent use of terms and clinical doubt. While nomenclature is more settled with regards to ovarian mucinous neoplasms, the difficulty here lies with distinguishing primary from secondary mucinous tumou...
An immunohistochemical study of the tissue CEA content of 82 epithelial neoplasms of the ovary has shown that mucinous tumours contain more of this substance than do their serous counterparts; otherwise a knowledge of tissue CEA content appears to be of little value in the differential histological diagnosis of this group of neoplasms. Among mucinous tumours there is only a partial corresponden...
Ovarian neoplasms consist of several histopathologic entities, and treatment depends on the specific tumor type. Epithelial ovarian cancer comprises most malignant ovarian neoplasms (~ 80%)1; however, other less-common pathologic subtypes must be considered in treatment guidelines. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Ovarian Cancer discuss epithelial ovarian ...
Epithelial ovarian carcinoma (EOC) is the fourth leading cause of cancer mortality among women in western countries. The incidence of newly diagnosed EOC in the US is estimated to be 22,430 cases per year with 15,280 deaths (Jamel A et al., 2006). Surface epithelial-stromal tumors are the most common neoplasms of the ovary. Their origin is likely the epithelium lining the ovarian surface and/or...
perivascular epithelioid cell tumor (pecoma) is a rare mesenchymal tumor composed of immunohistochemically and histologically distinctive perivascular epithelioid cells. here, we report on the computed tomography (ct) and magnetic resonance imaging (mri) findings of ovarian pecoma with pulmonary metastasis. the tumor was visible as a multilocular hemorrhagic mass that encased the ovarian vessel...
Ovarian sex cord-stromal tumors are relatively infrequent neoplasms that account for approximately 8% of all primary ovarian neoplasm. Sex cord-stromal tumors of the ovary include granulosa cell tumors, fibrothecomas, Sertoli-Leydigcell tumors, steroid cell tumors, and sclerosing stromal tumors (SST). Sclerosing stromal tumors account for 2% to 6% of ovarian stromal tumors. Despite the rarity o...
Non-epithelial ovarian cancer: ESMO clinical recommendations for diagnosis, treatment and follow-up.
Non-epithelial malignancies of the ovary account for 10% of all ovarian cancers. Germ cell tumors (GCTs) are diagnosed principally in young subjects whereas sex cord stromal tumors (SCSTs) are more common in adult women. GCTs represent 5% of all ovarian neoplasms and 80% of preadolescent malignant ovarian tumors. Sex cord stromal tumors are rare neoplasms that account for 3–5 % of ovarian malig...
Peripheral primitive neuroectodermal tumor (pPNET) is a highly aggressive small round cell tumor belonging to PNET/Ewing sarcoma family. Ovarian tumors composed of primitive neuroectodermal elements are extremely rare. Herein we reported two cases of peripheral primitive neuroectodermal tumors of ovary in two patients with different clinical presentations. Definite diagnoses were made bas...
In human estrogen-dependent neoplasms such as breast, endometrioid endometrial, and surface epithelial-stromal ovarian carcinomas, intratumoral aromatase is considered to play important roles in converting circulating androgens derived from adrenal cortex and/or ovary to estrogens, possibly in association with 17 beta-HSD type 1 and estrogen sulfatase. Analysis of intratumoral aromatase in thes...
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