Overall predominant pattern in invasive lobular carcinomas and invasive ductal carcinoma subtypes
| Predominant pattern | Invasive ductal carcinoma (n=219) | Invasive lobular carcinomas (n=27) | p Value |
| Nodular | 162 (74.0%) | 18 (66.7%) | |
| Diffuse | 15 (6.8%) | 5 (18.5%) | |
| Nodular and diffuse | 16 (7.3%) | 4 (14.8%) | 0.028 |
| Sinusoidal | 26 (11.9%) | 0 (0%) |
Tumour metastatic deposit patterns were assessed in a cohort of 246 tumours that show a single positive lymph node.