Radiotherapy after mastectomy would not be required in which of the following case scenarious of breast ca

.External radiotherapy is given over the breast area, axilla (in selected patients like if axillary dissection is not done or more than 4 positive axillary nodes), internal mammary and supraclavicular area * Total dosage 5000 cGY units * 200-cGY units daily 5 days a week for 6 weeks.indications for radiation therapy for carcinoma breat includes * After total mastectomy, external irradiation is given to axilla. * Patients with higher risk of local relapse after surgery: - a. Invasive carcinoma. b. Extensive in situ carcinoma. c. Patients under 35 years. d. With multifocal disease. * In bone secondaries, to palliate pain and swelling. If there is pathological fracture in the bone, internal fixation has to be done along with external irradiation. * Inflammatory carcinoma of breast. * In atrophic scirrhous carcinoma of breast, as a curative radiotherapy. * As preoperative radiotherapy, to reduce the tumour size and downstage the tumour, so that the operability is better. * More than 4 positive lymph nodes in the axilla, pectoral fascia involvement, positive surgical margins, extranodal spread or in patients with axillary status not known/not assessed. ref:SRB&;s manual of surgery,ed 3,pg no 485