Table 1.
Clinicopathologic characteristics of the primary breast tumors examined in this study: Details of the primary breast tumors in the 70 patients with matched blood and bone marrow specimens evaluated for HER2 by fluorescence in situ hybridization (FISH) using the OncoCEE™ microfluidic device
| Tumor characteristic | Frequency (n = 70) | Frequency (%) |
|---|---|---|
| Tumor stage | ||
| T4 | 7 | 10 |
| T3 | 8 | 11.4 |
| T2 | 22 | 31.4 |
| T1 | 33 | 47.1 |
| Nodal stage | ||
| N3 | 5 | 7.1 |
| N2 | 2 | 2.8 |
| N1 | 14 | 20 |
| N0 | 49 | 70 |
| HER2 status | ||
| HER2+ | 8 | 11.4 |
HER2, human epidermal growth factor receptor 2; CEE, cell enrichment and extraction.