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Table 2 Malignancy underestimation rates of B3 subtypes

From: Breast lesions excised via vacuum-assisted system: could we get any clues for B3 lesions before excision biopsy?

B3 subtype Number Underestimation Rate (%)
ADH 13 3 23.1
FEA 4 0 0
LN 3 0 0
PL 84 2 2.4
PL/ADH 2 1 50
PT 71 1 1.4
CSL/RS 6 1 16.7
  1. ADH atypical ductal hyperplasia, FEA flat epithelial atypia, LN classical lobular neoplasia, PL papillary lesions, PL/ADH papillary lesions/atypical ductal hyperplasia, PT phyllodes tumors, CSL/RS complex sclerosing lesions/radial scars