Six weeks ago I discovered a breast lump which was diagnosed as malignant and aggressive, 3.36cm. My mastectomy was delayed for three weeks. Today I was told that the tumor had grown to 5cm by the time I had the surgery, that it is not responsive to Tamoxifen, that 2 lymph nodes were positive. I was also told that there may be a wait of up to 6 weeks before I can even see the oncologist, let alone start treatment (chemo and radiotherapy). Now I'm worried that a 6-week delay may adversely affect my prognosis which doesn't look too good anyway. When is treatment usually started after a mastectomy? Is immediate treatment crucial, or am I worrying too much?