Ultrasound can estimate the pathologic size of infiltrating ductal carcinoma.

Abstract
BREAST-CONSERVING surgery has become established as a local treatment equivalent to mastectomy for appropriately selected patients with breast cancer. Removing the malignant tumor with a margin of normal breast tissue can provide equivalent survival when compared with removal of the entire breast.1 Local therapy has been increasingly directed toward the minimal removal of normal tissue. Reports of minimally invasive cryotherapy2 or laser ablation3 of breast tumors have been published. These techniques rely on radiographic imaging to establish the extent of treatment.