Table 1 Cohort characteristics for 19 patients with metaplastic breast cancer
Patient Characteristics | n = 19 | % |
|---|---|---|
Age: | Median: 68 | Range: 35–86 |
  < 50 | 3 | 15.8 |
 50 to < 70 | 7 | 36.8 |
  ≥ 70 | 9 | 47.4 |
Race: | ||
 Asian | 2 | 10.5 |
 Hispanic | 3 | 15.8 |
 Non-Hispanic White | 14 | 73.7 |
Breast Cancer Stage: | ||
 I | 2 | 10.5 |
 II | 15 | 78.9 |
 III | 1 | 5.3 |
 IV | 1 | 5.3 |
ER, PR, HER2 Status: | ||
 ER-, PR-, HER2- | 17 | 89.5 |
 ER-, PR-, HER2 unknown | 2 | 10.5 |
Histological Subtype: | ||
 Mesenchymal | 1 | 5.3 |
 Mixed spindle cell and mesenchymal | 2 | 10.5 |
 Mixed squamous and spindle cell | 3 | 15.8 |
 Spindle cell | 7 | 36.8 |
 Squamous | 6 | 31.6 |