“…4,6,9,20 -25 Disadvantages of FNA include false-negative interpretation in sclerotic carcinomas and small lesions, and the inability to distinguish invasive from in situ lesions. 1,18,21,23,26,27 Advantages of core biopsy include a better definition of atypical and malignant lesions, more accurate assessment of tumor grade, and minimum errors in interpretation. 2,4,13,26 -30 Disadvantages of core biopsy include greater risk of tumor implantation of the needle track, greater need for local anesthesia, and greater risk for bleeding, hematomas, and pain than with FNA.…”