Ad
related to: ovarian germ cells wikipedia full article today live free football streaming
Search results
Results From The WOW.Com Content Network
Ovarian germ cell tumors (OGCTs) are heterogeneous tumors that are derived from the primitive germ cells of the embryonic gonad, which accounts for about 2.6% of all ovarian malignancies. [1] There are four main types of OGCTs, namely dysgerminomas , yolk sac tumor , teratoma , and choriocarcinoma .
The 1997 International Germ Cell Consensus Classification [17] is a tool for estimating the risk of relapse after treatment of malignant germ-cell tumor. A small study of ovarian tumors in girls [18] reports a correlation between cystic and benign tumors, and conversely, solid and malignant tumors. Because the cystic extent of a tumor can be ...
Germ-cell tumors tend to occur in young women (20s–30s) and girls, making up 70% of the ovarian cancer seen in that age group. [33] Germ-cell tumors can include dysgerminomas, teratomas, yolk sac tumors/endodermal sinus tumors, and choriocarcinomas, when they arise in the ovary.
In contrast, the epithelial cells originate from the outer epithelial lining surrounding the gonad while the germ cell tumors arise from the precursor cells of the gametes, hence the name germ cell. [1] In humans, this group accounts for 8% of ovarian cancers and under 5% of testicular cancers. Their diagnosis is histological: only a biopsy of ...
Germ cell nest breakdown involves the degeneration of many germ cell nuclei and the invasion of pre-granulosa cells into the nests. [5] In the germ cell nest, one germ cell matures into an oocyte whereas others act as ‘nurse cells’, transferring their contents including cytoplasmic organelles like mitochondria into the predestined oocyte.
Ovarian tumors, or ovarian neoplasms, are tumors in the ovary. [1] Not all are ovarian cancer. [1] They consist of mainly solid tissue, while ovarian cysts contain fluid. [2]In 2020, the World Health Organization (WHO) divided ovarian tumours as 90% epithelial, 3% germ cell, and 2% sex cord-stromal types.
Ovarian tumors: Germ cell tumor: Seen most often in young women or adolescent girls. Other germ cell tumors are: Endodermal sinus tumor and teratoma, [25] Ovarian cancer: includes ovarian epithelial cancer [26] [27] [28] Luteoma: Seen in pregnancy: Ovaritis: Synonym of oophoritis [16] Ovarian remnant syndrome: Incomplete removal of tissue ...
For example, the most common cancer of the liver parenchyma ("hepato-" = liver), arising from malignant epithelial cells ("carcinoma"), would be called a hepatocarcinoma, while a malignancy arising from primitive liver precursor cells is called a hepatoblastoma. Similarly, a cancer arising from malignant fat cells would be termed a liposarcoma.