This study is a description of the radiation effects on the healthy tissues in patients receiving Anastrozole, sequential or in association with radiotherapy.

Inclusion Criteria:

• Post-menopausal woman without superior age limit
• No metastatic breast cancer, stade I-II, estrogen receptor positive or progesterone receptor positive, treated by conservative surgery or total mastectomy and requiring additive treatment by radiotherapy and hormonotherapy
• The patients including in another clinical trial can be include in this observatory

Patients are post-menopausal women treated for a breast concer