Table 2.
ILC | IDC | Total cases | P-value | |
Frozen section analysis of SLN | ||||
Positive | 36 (28%) | 33 (25%) | 69 (26%) | 0.622 |
Negative | 95 (73%) | 100 (75%) | 195 (74%) | |
Permanent section analysis of SLN | ||||
Positive | 54 (41%) | 44 (33%) | 98 (37%) | 0.171 |
Negative | 77 (59%) | 89 (67%) | 166 (63%) | |
Size of SLN metastasis (mm) | 6.0 (0.5–25.0) | 5.0 (0.1–32.0) | 5.5 (0.1–32.0) | 0.808 |
Classification of metastatic disease | ||||
Macrometastatic (>2.0 mm) | 36 (28%) | 28 (21%) | 64 (24%) | 0.378 |
Micrometastatic (≤ 2.0 mm) | 16 (12%) | 12 (9%) | 28 (11%) | |
Unknown classification | 2 (1.5%) | 4 (3%) | 6 (2%) | |
No metastatic disease | 77 (59%) | 89 (67%) | 166 (63%) |
ILC, invasive lobular carcinoma; IDC, invasive ductal carcinoma; SLN, sentinel lymph node