I'm 70 yrs. old in excellent health and had a 6 cm left breast biopsy in Jul 06. The pathology report, based on 28 slides, showed 2 areas of DCIS separated by 2-3 cm. The 1st (Mamm detected) DCIS about 1 cm. had clean margins: solid, cribiform, intermediate grade, central necrosis with calcifications, ER/PR(+)& HER2(-). The 2nd (MRI detected) DCIS at least 1.5 cm (very close margins): solid, cribiform, clinging, intermediate/high grade, apocrine features, central necrosis, no clacifications, ER/PR(-) & HER2 (3+). I elected bilateral mastectomy with a SNL biopsy on each side, no reconstruction. Analysis of 12 pathology slides showed no malignancy in either breast or in the nodes. ADH was found in the right breast which also showed up on that side 6 mos earlier in an excisional biopsy. Gladly, no maglinancies were found, but I was surprised that only 12 slides were used to analyze both breasts and the nodes. Seems like a very small % of total tissue removed was examined which makes me question the validity of the results. Q1: How confident can I be in the results even if confirmed by a 2nd opinion? Q2: The surgeon said I will need no further treatment (i.e., no chemo, radiation, or adjuvant therapy). I assume this is the recommended approach per NCCN and other guidelines but would like to know which circumstances dictate additional treatment, and, if so, what it would entail. Is my age a factor?