Adjuvant radiotherapy plays a vital role in the treatment of breast cancer, but irradiated area was not standardized. The ipsilateral chest wall and supraclavicular regions with or without intal mammary lymph nodes were reported in patients receiving postmastectomy radiotherapy.1,2 In our study, 133 consecutive patients with breast cancer of stage II/III who had received postmastectomy radiotherapy of supraclavicular and intal mammary regions at Cancer Hospital of Fudan University were analyzed for their survival and locoregional control as well as their relative prognostic predicator.