Table 2 Tumor pre-operative characteristics as determined via ultrasound.
Characteristics | Mean ± SD | N | % |
|---|---|---|---|
Histologic sub type | |||
Invasive ± DCIS | – | 181 | 90.5 |
DCIS | – | 12 | 6.0 |
High-risk lesion | – | 7 | 3.5 |
Tumor localization | |||
Outer quadrants | – | 121 | 60.5 |
Inner quadrants | – | 47 | 23.5 |
Central tumors | – | 32 | 16.0 |
Tumor size, mm | 12.6 ± 8.3 | ||
T1a | 33 | 16.5 | |
T1b | 87 | 43.5 | |
T1c | 78 | 39.0 | |
T2 | 2 | 1.0 | |
Tumor depth, mm | 10.1 ± 4.1 | ||
≤ 5 mm | 27 | 13.5 | |
≤ 10 mm | 87 | 43.5 | |
≤ 20 mm | 81 | 40.5 | |
> 20 mm | 5 | 2.5 | |
