Table 1.
Clinicopathologic features of patients with positive vs. negative axillary US-FNA
| Variables | Positive US-FNA [N(%)] | Negative US-FNA [N(%)] |
|---|---|---|
| Average age | 52.53 ± 13.2 | 53 ± 11.1 |
| Tumor type | ||
| IDC | 39/65 (60) | 28/36 (77.8) |
| IDC (residual) | 13/65 (20) | 0/36 (0) |
| IDC-DCIS | 0/65 (0) | 1/36 (2.8) |
| IDC/ILC | 0/65 (0) | 3/36 (8.3) |
| ILC | 2/65 (3.1) | 2/36 (5.6) |
| ILC (residual) | 1/65 (1.5) | 0/36 (0) |
| DCIS | 1/65 (1.5) | 0/36 (0) |
| DCIS (residual) | 1/65 (1.5) | 0/36 (0) |
| Adenosquamous | 0/65 (0) | 1/36 (2.8) |
| IMC with neuroendocrine features | 0/65 (0) | 1/36 (2.8) |
| No residual | 6/65 (9.2) | 0/36 (0) |
| No tumor | 1/65 (1.5) | 0/36 (0) |
| NA | 1/65 (1.5) | 0/36 (0) |
| Modified SBR grade | ||
| (3/3) | 23/65 (35.4) | 19/36 (52.8) |
| (2/3) | 23/65 (35.4) | 12/36 (33.3) |
| (1/3) | 4/65 (6.2) | 3/36 (8.3) |
| NA | 15/65 (23) | 2/36 (5.6) |
| Size | Mean = 3.4 +/- 3.3 cm | Mean = 2.3 ± 1.5 cm |
| Median = 2.5 cm | Median = 2.0 cm | |
| Neoadjuvant therapy | ||
| None | 43/65 (66.2) | 33/36 (91.7) |
| Yes | 21/65 (32.3) | 3/36 (8.3) |
| NA | 1/65 (1.5) | 0/36 (0) |
US-FNA ultrasound-guided fine needle aspiration, IDC invasive ductal carcinoma, ILC invasive lobular carcinoma, DCIS ductal carcinoma in situ, IMC invasive mammary carcinoma, SBR Scarff-Bloom-Richardson, NA not available