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Table 1 Clinical and pathological features between purely epithelial and mixed epithelial MCB.

From: Metaplastic carcinoma of the breast: a clinical and pathological study of 40 cases

  All cases Purely epithelial Mixed epithelial and mesenchymal
Mean age (years) (n = 40) 47.9 49.4 46.4
Breast side (n = 38)    
Right 22 (58%) 10 (52.6%) 12 (63.1%)
Left 16 (42%) 9 (47.3%) 7 (36.8%)
Mean tumor size (cm) 7.16 (1.8–40) 5.79 (2–11) 8.31 (1.8–40)
Clinical stage    
I 2 (5%) 0 2 (10.5%)
II 14 (35%) 8 (42.1%) 6 (31.5%)
III 21 (52.5%) 10 (52.6%) 11 (57.9%)
Non-classifiable 3 (7.5%)   
Outcome (n = 33)    
No relapse 20 (60.6%)   
Relapse 10 (30.3%)   
Progression of disease 3 (9.1%)   
Recurrence site    
Local 2 (20%) 1 (20%) 1 (20%)
Distant 8 (80%) 4 (80%) 4 (80%)
Overall survival (months) 45.2 49.9 40.5