Known area of nonmass enhancement in the left breast. Family history of breast cancer, dense breasts. There is heterogeneous amount of fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally. A few scattered cysts are again noted.In the far superior posterior medial left breast, the known area of nonmass enhancement is again seen. This has similar measurements to the prior exam, measuring 1.4 x 1.7 x 2.3 cm (previous 1.7 x 1.4 x 2.3 cm, AP x LM x CC). Slight differences in positioning may account for the small measuring differences. Kinetics are predominately persistent at this site. No new suspicious left breast enhancing lesion. Previously noted 5 mm focus in the right outer breast is not significantly enhancing today. In the right upper inner quadrant there is a focal area of non-mass enhancement that is morphologically similar to the area of issue in the left breast. Scattered enhancing foci in the right breast are present elsewhere, none uniquely suspicious.No abnormal axillary lymph nodes are identified in either axillary region.The recommendations below are a consensus of 3 attending breast radiologists.
No significant change in the area of non-mass enhancement in the left breast. The stability and appearance make malignancy less likely. In a 45 year old, this is more likely to represent a variant of benign parenchymal enhancement, especially because similar, though less prominent enhancement is seen in the opposite breast. In terms of imaging follow up, the favored option to consider would be 6 month follow up MRI to document continued stability. If that cannot be performed, than a 12 month MRI is suggested. BIRADS: 3 - Probably benign finding.RECOMMENDATION: T - Take Appropriate Action - No Letter.