| Overall (n = 40) | Breast conserving surgery specimens (n = 22), margin status | Mastectomy specimens (n = 18), margin status | ||||||
---|---|---|---|---|---|---|---|---|---|
Core biopsy features | ≤ 0.2 cm (n = 21) | > 0.2 cm (n = 19) | p | ≤ 0.2 cm (n = 13) | > 0.2 cm (n = 9) | p | ≤ 0.2 cm (n = 8) | > 0.2 cm (n = 10) | p |
Maximum nuclear grade 3/3 (n = 18) | 9 | 9 | 1 | 3 | 3 | 1 | 6 | 6 | 1 |
Maximum nuclear grade 2/3 (n = 22) | 12 | 10 | 0.76 | 10 | 6 | 0.29 | 2 | 4 | 0.57 |
Necrosis present (n = 33) | 16 | 17 | 1 | 10 | 8 | 0.74 | 6 | 9 | 0.47 |
Comedo-pattern present (n = 16) | 8 | 8 | 1 | 3 | 2 | NA | 5 | 6 | 1 |
Cancerization of lobules present (n = 21) | 9 | 12 | 0.54 | 4 | 5 | 1 | 5 | 7 | 0.68 |
Number of tissue cores processed (mean) | 8.6 | 9.4 | 0.56 | 9.4 | 8.4 | 0.66 | 7.25 | 10.3 | 0.08 |
DCIS ducts per tissue core (mean) | 5.9 | 6.1 | 0.85 | 6 | 4.2 | 0.17 | 5.9 | 7.9 | 0.35 |
Number of tissue cores with DCIS | 4.42 | 5.05 | 0.45 | 4.23 | 3.89 | 0.68 | 4.75 | 6.1 | 0.31 |
Total DCIS ducts (mean) | 25.9 | 31.4 | 0.49 | 23.1 | 17.6 | 0.35 | 30.25 | 43.9 | 0.4 |
Solid Pattern present (n = 37) | 20 | 17 | 0.64 | 13 | 7 | 0.11 | 7 | 10 | 0.49 |
Micropapillary pattern present (n = 10) | 6 | 4 | 0.66 | 3 | 2 | NA | 3 | 2 | NA |
Cribriform pattern present (n = 18) | 8 | 10 | 0.53 | 5 | 5 | 1 | 3 | 5 | 0.62 |
Clinging pattern present (n = 4) | 3 | 1 | NA | 0 | 1 | NA | 3 | 0 | NA |