The most frequent ovarian germ cell tumors are mature cystic teratomas (MCTs), composing 10-25% of all ovarian neoplasms. MCTs have the potential of undergoing malignant transformation, typically in postmenopausal women, with a frequency of 0.17-3%, with squamous cell carcinoma being the most common malignant tumor arising from MCT. We present the rare clinical entity of a squamous cell carcino...

Most abdominal masses in the pediatric population derive from ovaries. Ovarian can occur all ages, although their incidence, clinical presentation and histological distribution vary among different age groups. Children adolescents may develop non-neoplastic ovarian lesions, such as functional cysts, endometrioma, torsion, abscess lymphangioma well neoplasms, which are divided into germ cell, ep...

The recognition that a significant fraction of what historically has been classified as ovarian cancer is, in fact, a malignancy that arises in the fallopian tube mucosa comprises a paradigm shift in our understanding of these neoplasms. New etiologic and management opportunities have been created by this insight, both for women at increased genetic risk of ovarian cancer by virtue of being BRC...

Ovarian cancer is one of the most common gynaecological neoplasms, especially in industrialised countries. The aetiology of the disease is not well understood, except that inherited mutations in the breast cancer genes BRCA-1 and BRCA-2 account for up to 10% of all cases, and child-bearing, oral contraceptive use and breast-feeding reduce the risk. Some environmental exposures, notably talc and...

Background & Objective: The common epithelial ovarian tumors are classified into serous, mucinous, clear cell, endometrioid, the Brenner, mixed, and undifferentiated types. Cytoskeleton intermediate filament composition of ovarian tissues indicates that the cytokeratin and vimentin are observed in ovarian surface epithelium along with the common ovaria...

Alterations in p53 and Rb pathways are observed frequently in epithelial ovarian cancer (EOC).However, their roles in EOC initiation remain uncertain. Using a single intrabursal administration of recombinant adenovirus expressing Cre, we demonstrate that concurrent inactivation of p53 and Rb1 is sufficient for reproducible induction of ovarian epithelial carcinogenesis in mice homozygous for co...

Sertoli-Leydig cell tumor (SLCT) of ovary is an exceedingly unusual neoplasm that belongs to a group of sex cord-stromal tumors of ovary and accounts for less than 0.5% of all primary ovarian neoplasms. Very few case reports have been documented in the literature so far. Herein, we report a case of primary poorly differentiated ovarian Sertoli-Leydig cell tumor (SLCT) involving the left ovary i...

Neuroendocrine tumours (NET) are a heterogeneous group of neoplasms commonly occurring in the gastrointestinal tract or lungs but can occur in other regions. Primary ovarian NET account for 5% of all NET and 0.1% of all ovarian malignancies. In metastatic disease, the therapeutic goal is to extend survival and to improve quality of life. As these tumours express somatostatin receptors, somatost...