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It is an uncommon form of endometrial cancer that typically arises in postmenopausal women. It is typically diagnosed on endometrial biopsy, prompted by post-menopausal bleeding. Unlike the more common low-grade endometrioid endometrial adenocarcinoma, uterine serous carcinoma does not develop from endometrial hyperplasia and is not hormone ...
Uterine cancer, also known as womb cancer, includes two types of cancer that develop from the tissues of the uterus. [3] Endometrial cancer forms from the lining of the uterus, and uterine sarcoma forms from the muscles or support tissue of the uterus. [1] [2] Endometrial cancer accounts for approximately 90% of all uterine cancers in the ...
In 10–20% of endometrial cancers, mostly Grade 3 (the highest histologic grade), mutations are found in a tumor suppressor gene, commonly p53 or PTEN. In 20% of endometrial hyperplasias and 50% of endometrioid cancers , PTEN has a loss-of-function mutation or a null mutation , making it less effective or completely ineffective. [ 37 ]
There is an association with endometriosis and concurrent primary endometrial carcinoma (endometrial cancer). On gross pathological examination, the tumor is cystic and may be solid and some arise in cystic endometriosis. In 40% of cases, endometrioid tumors are found bilaterally. [3]
Unlike the more common low-grade endometrioid endometrial adenocarcinoma, uterine serous carcinoma does not develop from endometrial hyperplasia and is not hormone-sensitive. It arises in the setting of endometrial atrophy and is classified as a type II endometrial cancer. [6]
Low-grade endometrial stromal sarcoma consists of cells resembling normal proliferative phase endometrium, but with infiltration or vascular invasion. These behave less [3] aggressively, sometimes metastasizing, with cancer stage the best predictor of survival. The cells express estrogen/progesterone-receptors.
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