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leiomyoma
A leiomyoma (plural leiomyomas or leiomyomata) (''leio-'' + ''myo-'' + ''-oma'', "smooth-muscle tumor") is a benign smooth muscle neoplasm that very rarely becomes cancer (0.1%). They can occur in any organ, but the most common forms occur in the uterus, small bowel, and the esophagus.
==Uterus==
(詳細はuterine smooth muscle. As other leiomyomata, they are benign, but may lead to excessive menstrual bleeding (menorrhagia), often cause anemia and may lead to infertility.
A rare form of these tumors is uterine lipoleiomyoma - benign tumors consisting of a mixture of adipocytes and smooth muscle cells. Uterine lipoleiomyomata have been observed together with ovarian and other pathologies and some of them may develop into liposarcoma. These tumors are monoclonal, and non-random chromosomal abnormalities have been seen in 40% of the tumors.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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