Evaluation of Mobiderm Intimate Bra in the Management of Breast Edema Related to Breast Cancer Treatment

Inclusion Criteria: * Females aged 18 years and older. * Patients who have undergone conserving surgery for breast cancer. * Patients scheduled to undergo radiation treatment of the breast/chest wall within the next 12 weeks after surgery. * Patients with a morphology compatible with the proposed sizes of the devices, including bust girth and cup size. * Patients who have signed an informed consent form prior to any study intervention. * Patients with full legal capacity and enrolled in a social security system or covered by a similar health insurance. Exclusion Criteria: * Patients with an A cup bra size. * Patients with infected or acutely inflammatory skin on the chest. * Patients who require chemotherapy during the follow-up period. * Pregnant women or women of childbearing age without adequate contraception or in the lactation period. * Participation in other clinical trials that impact the primary endpoint. * Patients with a known allergy to the investigational device components. * Patients with psychiatric, psychological, or neurological disorders that are incompatible with the conduct of a clinical trial. * Patients unable to be followed for 12 months. * Vulnerable patients, or those subject to a judicial protection measure or unable to provide informed consent freely.