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Table 1

From: Is ultrasound axillary staging less accurate in invasive lobular breast cancer than in ductal breast cancer?

  IDC ILC Pvalue
Node-positive BC 34% (22/65) 32% (21/65)  
Preoperative US detection of node-positive disease 54% (12/22) 52% (11/21) 0.5
Abnormal US LN appearance 37% (24/65)a 26% (17/65)b 0.2
False negative rate for axillary US biopsy 18% (4/22) 12% (2/16) 0.5
  1. aOne unable to biopsy due to technical factors, one failure to sample node-B1. bOne failure to sample node-B1.