<prompt> High risk breast cancer female investigation of choice is ?MRIUSGMammographyClinical examination  <response>: . MRI of breast: - To differentiate scar from recurrence. - To image breasts of women with implants. - To evaluate the management of axilla and recurrent disease. It is useful in screening females with high risk group. T1 and T2 weighed images are taken. Irregular mass with spiculations, changes in skin and nipple, lymphoedema are the findings in carcinoma breast. MRI breast is not accurate if done within 9 months of the radiotherapy in carcinoma of breast. Both precontrast and postcontrast MRI are done. ref:SRB;s manual of surgery,ed 3,pg no 479 