Results of pathological review in patients with metaplastic breast cancer (n=67)
| Histological features | N (%) |
| Squamous | 35 (52.2) |
| Spindle | 9 (13.4) |
| Chondroid | 7 (10.4) |
| Osseous | 2 (3.0) |
| Matrix-producing | 6 (9.0) |
| Squamous + spindle | 1 (1.5) |
| Adenosquamous + spindle | 1 (1.5) |
| Squamous + chondroid + spindle | 1 (1.5) |
| Squamous + osseous | 1 (1.5) |
| Squamous + matrix-producing | 1 (1.5) |
| Chondroid + matrix-producing | 1 (1.5) |