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. 2012 Jun 7;103(8):1580–1585. doi: 10.1111/j.1349-7006.2012.02314.x

Table 2.

Clinicopathological data on 33 atypical intraductal lesions of follow‐up cases from initial biopsy

Lesion type Number of patients (= 33) Age (years) (mean ± SD) CNB/USMT/STMT (N) Number of biopsies (median [range]) Follow‐up (days) (mean ± SD) Imaging (n) >  C‐4a, b (4c)
ADH 13 48.2 ± 10.5 0/3/10 4 [2–7] 976.7 ± 503.0 13 (4)
Pure FEA 9 48.6 ± 12.2 0/1/8 4 [2–8] 497.0 ± 134.8 9 (3)
Pure ALH 3 57.7 ± 22.1 1/2/0 5 [3–9] 917.0 ± 420.2 0 (0)
ADH + FEA 8 45.9 ± 11.1 0/2/6 3.5 [2–9] 841.5 ± 459.1 7 (2)

†Follow‐up data since initial biopsy. At least mammography and/or ultrasonography were examined per year after initial biopsy. ‡Imaging data is by Breast Imaging Reporting and Data System (BI‐RADS) at the initial biopsy. ADH, atypical ductal hyperplasia; ALH, atypical lobular hyperplasia; C, category; CNB, core needle biopsy; FEA, flat epithelial atypia; STMT, stereo‐guided Mammotome biopsy; USMT, ultrasound‐guided Mammotome biopsy.