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Table 1 Clinicopathologic characteristics of 233 invasive breast cancer patients studied for receptor conversion in distant metastases

From: Receptor conversion in distant breast cancer metastases

Feature Grouping N or value %
Age (years) Mean 53.9  
  Range 25 to 93  
Tumor size (cm) ≤2 73 31.3
  > 2 and ≤5 80 34.3
  > 5 12 5.2
  Not available 68 29.2
Histologic type Invasive ductal cancer 192 82.4
  Invasive lobular cancer 20 8.6
  Others 20 8.6
  Not available 1 0.4
Histologic grade 1 8 3.4
  2 61 26.2
  3 161 69.1
  Not available 3 1.3
MAI (per 2 mm2) Mean 25  
  Range 0 to 172  
  ≤12 71 30.5
  ≥13 156 67.0
  Not available 6 2.5
Lymph node status Positive 119 51.1
  Negative 81 34.8
  Not available 33 14.2
Site of distant metastases Brain 44 18.9
  Lung 43 18.5
  Liver 63 27.0
  Skin 76 32.6
  Gastro-intestinal 7 3.0