A female undergone surgery for left breast cancer 3 yrs back now developed blue nodule on same side -

Ans. is 'a' i.e.. Lymphangiosarcoma o Angiosarcoma is a vascular tumor which may arise de novo in the breast or as a complication of the radiation therapy."This vascular tumor may occur de novo in the breast, but the clinically important presentation is in the dermis after breast radiation or in the lymphedematous upper extremity, following radical mastectomy'' ___ Sabiston