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

Objective

To identify whether axillary US is less accurate in invasive lobular breast cancer than in ductal breast cancer.

Methods

Randomised cohorts of screening and symptomatic patients were retrospectively identified from histology records of 2010/11. Axillary US of 65 patients with primary breast cancers (BC) from each group of invasive lobular cancer (ILC) and invasive ductal cancer (IDC) were reviewed. Preoperative US-guided needle biopsy sampling was performed on abnormal lymph nodes (LN).

Results

See Tables 1 and 2.

Table 1
Table 2

Conclusion

The previous literature on this topic is inconclusive. Some authors have suggested axillary ultrasound in ILC may be less accurate than in IDC, with a higher false-negative axillary assessment rate. Another study concluded that axillary US accuracy rates in ILC were comparable with previous published studies of IDC, used FNA in all cases. We specifically compared accuracy rates of preoperative axillary staging between ILC and IDC in own institution, with 14G needle biopsy as the procedure of choice to sample abnormal nodes. We found that there is no statistical difference in accuracy in US axillary staging between ILC and IDC.

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Correspondence to P Sankaye.

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Sankaye, P., Porter, G., Steel, J. et al. Is ultrasound axillary staging less accurate in invasive lobular breast cancer than in ductal breast cancer?. Breast Cancer Res 14, O2 (2012). https://doi.org/10.1186/bcr3251

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Keywords

  • Breast Cancer
  • Needle Biopsy
  • Axillary Staging
  • Ductal Breast Cancer
  • Previous Published Study