[Epidemiology, classification and risk factors of endometrial cancer]

MICROSATELLITE INSTABILITY IN ENDOMETRIAL CANCERS The microsatellite instability reflects genetic instability that can be sought in tumors, using two methods, immunohistochemistry and molecular biology. Currently in France, a systematic evaluation of microsatellites is recommended in any endometrial cancer from diagnosis. The interest of this evaluation is threefold: diagnostic, prognostic and therapeutic. The presence of microsatellite instability in endometrial cancer allows to detect Lynch syndrome, a hereditary cancer predisposition syndrome, in some patients. The microsatellite status is essential for establishing the molecular classification of endometrial cancers, a classification which has a well-established prognostic value, and finally it determines the eligibility for immunotherapy.