35 year old female with 2 left breast carcinomas undergoing chemotherapy. There is extreme amount of fibroglandular tissue in both breasts.Minimal parenchymal enhancement is noted bilaterally.RIGHT BREAST: Interval decrease in degree of enhancement and slight decrease in extent of enhancement of the clumped segmental nonmass enhancement in the central lateral right breast. On the current exam, non-mass enhancement extends 6.9 x 3.3 x 5.3 cm (AP x ML x CC), previously 9.3 x 6.6 x 5.3 cm. No new areas of abnormal enhancement. A few medial foci of enhancement are again seen.In the right axilla, there is a lymph node with normal morphology. No abnormal lymph nodes.LEFT BREAST: Diffuse cutaneous thickening has decreased compared to prior. Significant interval decrease in size and enhancement of retroareolar lobulated rim enhancing mass with nipple involvement, currently measuring 1.1 x 1.2 x 1.2 cm (AP x ML x CC), previously 2.9 x 2.0 x 2.8 cm. Interval decrease in size and degree of enhancement of 6 o'clock position far posterior depth spiculated heterogeneously enhancing mass which extends to although separate from the fascia overlying the pectoralis muscle. This mass measures 3.2 x 2.8 x 1.7 cm (AP x ML x CC), previously 5.6 x 3.7 x 2.7 cm.Nonenhancing biopsy proven 1.3 cm fibroadenoma in 1:30 position, mid depth is unchanged. Previously seen enhancing 1.2 cm rounded mass in the 2 o'clock position, posterior depth does not demonstrate enhancement on the current examination, although remains visualized on T2 sequence. No lymph nodes, abnormal or otherwise are seen in the left axilla.
1.Significant interval decrease in size and degree of enhancement of two (retroareolar and 6 o'clock posterior depth) left breast masses. 2.Previously seen enhancing 2 o'clock left breast mass does not demonstrate enhancement of the current exam.3.Stable biopsy proven 1:30 left breast fibroadenoma. 4.Interval decrease in size and degree of enhancement of non-mass enhancement in the right breast. 5.No abnormal lymph nodes in either axillae.BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter.