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  • Leydig cell tumour

    serch.it?q=Leydig-cell-tumour

    Leydig cell tumour, also Leydig cell tumor (US spelling), (testicular) interstitial cell tumour and (testicular) interstitial cell tumor (US spelling), is a member of the sex cord-stromal tumour group of ovarian and testicular cancers. It arises from Leydig cells. While the tumour can occur at any age, it occurs most often in young adults. A Sertoli-Leydig cell tumour is a combination of a Leydig cell tumour and a Sertoli cell tumour from Sertoli cells.

  • Clear-cell ovarian carcinoma

    serch.it?q=Clear-cell-ovarian-carcinoma

    Micrograph of an ovarian clear cell carcinoma. H&E stain. Clear cell ovarian carcinoma is one of several subtypes of ovarian carcinoma. The two types of ovarian carcinoma are epithelial and nonepithelial. Within these two categories, clear-cell is a subtype of epithelial ovarian cancer. The other major subtypes within this group include high-grade serous, endometrioid, mucinous, and low-grade serous. The serous type is the most common form of epithelial ovarian tumors. Cord-stromal and germ cell belong to the nonepithelial category which are much less common. According to research, most ovarian cancers start at the epithelial layer which is the lining of the ovary. Within this epithelial group clear cell ovarian carcinoma makes up about 5-10% Clear cell became recognized as a separate category of ovarian cancer by the World Health Organization in 1973. Its incidence rate differs across various ethnic groups. Reports from the United States show that the highest rates are among Asians with 11.1 percent versus whites with 4.8 percent and blacks at 3.1 percent. These numbers are consistent with the finding that although clear cell carcinomas are rare in western countries they are much more common in parts of Asia.

  • Embryoma

    serch.it?q=Embryoma

    An Embryonal tumor or embryoma is a mass of rapidly growing cells believed to originate in embryonic (fetal) tissue. Embryonal tumors may be benign or malignant, and include neuroblastomas and Wilms tumors. Also called embryoma. Embryomas have been defined as: "Adult neoplasms expressing one or more embryo-exclusive genes." Embryomas can appear in the lungs. It is not a precise term, and it is not commonly used in modern medical literature. Embryomas have been defined as: "Adult neoplasms expressing one or more embryo-exclusive genes".

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