I am 49-year-old woman diagnosed with invasive carcinoma (NST). The Histopathology report states that a US guided trucut biopsy confirms a malignant mass in 12 o'clock position in the left breast. The provisional tumour grade is Nottingham grade II. No lympho-vascular invasion. Category is B 5 b (invasive malignancy).
Would like to have your opinion on what should be the best treatment?