On the other hand, 5 fibroadenomas, 4 abscesses, 3 adenoses
, 2 columnar cell changes, 3 fibroses and 1 intraductal papilloma are misclassified by both ADC and dpADC.
These lesions usually come into attention when they harbor calcifications detected by screening mammography, or if multiple affected lobules fuse together forming a mass, "adenosis tumor or nodular adenosis." There are several types of adenoses
that may resemble invasion both radiologically and histologically, such as sclerosing adenosis, tubular adenosis, and microglandular adenosis.
Fibrocystic disease is a "catch-all" phrase that encompasses breast diseases such as mammary dysplasia, lobular hyperplasia with evidence of cyst formation, apocrine metaplasia or atypia, collagenosis, fibrosclerosis, interstitial fibrosis, papillomatosis, sclerosing and fibrosing adenoses
, fibroadenoma and intraductal papilloma.