What is Leiomyosarcoma?
'''Leiomyosarcoma,''' also referred to as '''LMS''', is a malignant ([[cancerous]]) [[smooth muscle]] [[tumor]]. It is a [[benign tumor]] originating from the same tissue called [[leiomyoma]]. It has been believed that leiomyosarcomas do not arise from leiomyomas.<ref>{{Cite book|title = Robbins and Cotran Pathologic Basis of Disease|last1 = Kumar|first1 = Vinay|publisher = Elsevier|year = 2015|isbn = 978-1-4557-2613-4|location = Philadelphia, PA|pages = 1020–1021|last2 = Abbas|first2 = Abul|last3 = Aster|first3 = Jon}}</ref> About 1 in 100,000 people gets diagnosed with LMS each year.<ref>{{Cite web|url=http://www.seer.cancer.gov| title=Surveillance, Epidemiology, and End Results (SEER) Program Stat Database: Incidence—SEER 18 Regs Research Data + Hurricane Katrina Impacted Louisiana Cases, Nov 2016 Sub 2000-2014 Katrina/Rita Population Adjustment—Linked To County Attributes - Total U.S., 1969–2015 Counties, DCCPS, Surveillance Research Program|date=April 2017 |publisher=National Cancer Institute |access-date=June 6, 2017}}</ref> Leiomyosarcoma is one of the more common types of [[soft-tissue sarcoma]], representing 10 percent to 20 percent of new cases. Leiomyosarcomas can be very unpredictable. They can remain [[Cancer dormancy|dormant]] for long periods of time and recur after years. The cancer is aggressive and hardly responds to [[chemotherapy]] treatments.<ref name=LMS_info>{{cite web|title=Basic info|website=Leiomyosarcoma.info|url=http://www.leiomyosarcoma.info/basic.htm|url-status=dead|archive-url=https://web.archive.org/web/20090430111311/http://www.leiomyosarcoma.info/basic.htm|archive-date=2009-04-30}}</ref> ==References== {{reflist}} {{med-stub}} [[Category:Cancer]]