RecruitingProcedureThe LYMPH Trial - Microsurgical Versus Conservative Treatment of Chronic Breast Cancer Associated LymphedemaThe aim of this study is to test whether lymphatic surgery provides better QoL (assessed with the Lymph-ICF-UL, (Lymphedema Functioning Disability and health questionnaire for upper limb lymphedema)) 15 months after randomization (and therefore about one year after surgery) compared to conservative treatment only for patients with chronic lymphedema (LE)