I'm looking for assistance in understanding my results as I prepare for a biopsy in hopes to speak intellectually and level headed with the oncologist tomorrow. My doctor likes you to meet with the surgical oncologist before the radiologist conducts the biopsy. Persisting asymmetry, located laterally. 5:00 position and 5 cm from nipple. Ill defined hypoechoic region, 18mm in size. Margins ill defined, posterior acoustic shadowing is seen. A few fatty replaced lymph nodes are noted incidentally in the axilla. Any advice is greatly appreciated.