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Table 3 Clinicopathological characteristics of triple negative breast cancers studied in this cohort

From: Mutations in the epidermal growth factor receptor (EGFR) gene in triple negative breast cancer: possible implications for targeted therapy

Clinicopathological features Numbers
Age (years)  
Mean 52
Minimum 38
Maximum 78
Tumour size (mm)  
Mean 34.9 mm
Minimum 1.5 mm
Maximum 125 mm
Tumour grade  
1 2
2 15
3 53
Histology  
Invasive ductal carcinoma 66
Invasive lobular carcinoma 2
Papillary 1
Metaplastic 1
Growth pattern  
Trabecular 38
Syncytial 32
Nuclear pleomorphism  
Moderate 19
Marked 51
Lymphovascular invasion  
Present 28
Absent 41
Not available 1
Axillary lymph node involvement  
Involved 34
Not involved 31
Not available 5
Associated DCIS  
Absent 19
Intermediate nuclear grade 28
High nuclear grade 11
Not available 12
  1. DCIS, ductal carcinoma in situ.