[Breast cancer management before 40 years: what change in one decade? A retrospective study at the "Institut de cancérologie de Lorraine": 2002-2012].

Introduction: Breast cancer of young women has medico-psychological issues, particularly in the perspective of "after cancer" period. The objective of the study was to analyze the changes in management, in a decade including the publication of Cancer Plans I and II.

Methods: This retrospective unicentric study involved two populations of women aged 40 and treated at the "Institut de cancérologie de Lorraine" in 2002-2004 (P1) and 2012-2014 (P2).