Ovarian Sertoli-Leydig cell tumors are rare sex cord-stromal tumors, accounting for less than 1% of ovarian tumors. Majority of these tumors are benign and unilateral, only 3-5% are bilateral. These patients present with clinical features of virilization due to excessive secretion of testosterone from the tumor, however 50% may have no endocrine symptoms. We report a case of poorly differentiat...

We report a case of double uterine tumor resembling ovarian sex cord tumor (UTROSCT). The tumor was composed of sex cord-like cords, nests and tubules, and bundles of myoid cells. The lesion was interesting especially in regard to histogenesis of intratumoral myoid cells. It is not known whether these cells are neoplastic or whether they represent preexisting myometrial smooth muscle cells entr...

Sex cord tumors with annular tubules are known to originate from the sex cord of embryonic gonads that synthesize Sertoli cells, Leydig cells, granulosa cells, and theca cells of the ovarian stroma, while ovarian small cell carcinoma of the hypercalcemic type is a type of neuroendocrine tumor. Both these tumors are uncommon, potentially malignant neoplasms in children. We report the case of a s...

While all childhood cancers are rare, tumors that particularly infrequent or underrepresented within pediatrics studied under the umbrella of Children’s Oncology Group Rare Tumor committee, divided into Retinoblastoma and Infrequent subcommittees. The subcommittee has traditionally included an emphasis on globally rare such as adrenocortical carcinoma, nasopharyngeal those in young children, de...

This study investigated the expression patterns of Müllerian inhibiting substance/anti-Müllerian hormone type II receptor (MIS/AMHRII) and mRNA in various types of ovarian neoplasia and evaluated the clinical significance of MIS/AMH as a biological response modifier for MIS/AMHR-positive tumors. Reverse transcriptase polymerase chain reaction was used to detect MIS/AMHRII mRNA expression and in...

BACKGROUND Transforming growth factor beta (TGFB) superfamily signaling is implicated in the development of sex cord-stromal tumors, a category of poorly defined gonadal tumors. The aim of this study was to determine potential effects of dysregulated TGFB signaling in the ovary using Cre recombinase driven by growth differentiation factor 9 (Gdf9) promoter known to be expressed in oocytes. ME...

Granulosa cell tumor (GCT) is an uncommon malignant neoplasm primarily arises from the sex-cord stromal cells of the ovary. They represent about 5 to 8 % of all cancers of the ovary. They belong to the category of sex-cord stromal tumors: juvenile or adult types are frequently used in the literature. Juvenile GCT represents only 5% of this tumor and usually occurs in pre-pubertal girls and wome...

Granulosa cell tumor of the testis is an infrequent stromal cell tumor that can be distinguished into adult and juvenile, the latter being more common. Juvenile granulosa cell tumor of the testis is a rare pathologic finding, accounting for 1.2%-3.9% of prepubertal testicular tumors. It is considered as a benign stromal sex cord tumor and is usually unilateral. Although radical surgery was prev...

background gastrointestinal stromal tumors (gists) are potentially malignant tumors; however their behavior and response to treatment is dependent on the type of mutation and immunohistochemical expression of antigens. it is recommended to perform routine molecular and immunohistochemical tests in kit and platelet derived growth factor receptor alpha (pdgfra) molecules for making decision regar...