A Single-Center 18-Year Series of 73 Cases of Metaplastic Carcinoma of the Breast

Table 3

Survival analyses, overall survival (OS).

	Survival (%)
5-year OS rate	66.8	—
Pathological T		<0.0001
pT0-1	82.4
pT2	71.5
pT3-4	20.0
Pathological N		0.049
pN0	73.5
pN+	42.9
Chemotherapy		0.003
Yes	73.5
No	50.2
Chemotherapy type		0.001
Adjuvant	82.8
Neoadjuvant	25.0
Radiotherapy		0.107
Yes	72.4
No	51.3
Surgery type		<0.0001
Mastectomy	43.5
Breast-conserving surgery	90.3
Pathological subtype		0.423
Adenosquamous, low-grade	100
Fibromatosis-like	100
Spindle cell	67.5
Squamous cell	58.7
Heterologous mesenchymal cell differentiation	83.3
Mixed	53.9
Pathological subtype, grouped		0.094
Nonmixed	73.4
Mixed	53.9