BACKGROUND: The optimum sentinel node biopsy (SNB) mapping method for breast cancer remains to be determined. No matter which mapping agents are used, 2-site injection may be superior to 1-site injection in limiting the false-negative rate. METHODS: We examined whether a double-mapping method with subareolar injection of blue dye and peritumoral injection of green dye would decrease the false-negative rate of dye-only SNB in 145 patients with early breast cancer. RESULTS: The identification rate for blue-dyed and/or green-dyed (including mixed color-dyed) lymph nodes was 96.6% (140/145). Sensitivity and specificity were 95.1% (39/41) and 100% (99 of 99), respectively. Accuracy was 98.6% (138/140) with a false-negative rate of 4.9% (2/41). There were 4 patients in whom nodes of each color were found, but nodes of only 1 color were shown to be positive. The primary tumors of these 4 patients and of the 2 patients with false-negative results were located in the upper-outer quadrant of the breast. When only blue-dyed or green-dyed nodes (including mixed color-dyed nodes) were counted, the false-negative rates were 10.3% (4/39) for the subareolar mapping technique and 10.0% (4/40) for the peritumoral mapping technique. CONCLUSIONS: The double-mapping method based on subareolar and peritumoral injections decreases the false-negative rate of dye-only SNB for early breast cancer. Variations in lymphatic channels may exist in the lateral half of the breast and thus may influence identification of positive sentinel nodes. This finding should be taken into account in cases of multicentric breast cancer.
BACKGROUND: The optimum sentinel node biopsy (SNB) mapping method for breast cancer remains to be determined. No matter which mapping agents are used, 2-site injection may be superior to 1-site injection in limiting the false-negative rate. METHODS: We examined whether a double-mapping method with subareolar injection of blue dye and peritumoral injection of green dye would decrease the false-negative rate of dye-only SNB in 145 patients with early breast cancer. RESULTS: The identification rate for blue-dyed and/or green-dyed (including mixed color-dyed) lymph nodes was 96.6% (140/145). Sensitivity and specificity were 95.1% (39/41) and 100% (99 of 99), respectively. Accuracy was 98.6% (138/140) with a false-negative rate of 4.9% (2/41). There were 4 patients in whom nodes of each color were found, but nodes of only 1 color were shown to be positive. The primary tumors of these 4 patients and of the 2 patients with false-negative results were located in the upper-outer quadrant of the breast. When only blue-dyed or green-dyed nodes (including mixed color-dyed nodes) were counted, the false-negative rates were 10.3% (4/39) for the subareolar mapping technique and 10.0% (4/40) for the peritumoral mapping technique. CONCLUSIONS: The double-mapping method based on subareolar and peritumoral injections decreases the false-negative rate of dye-only SNB for early breast cancer. Variations in lymphatic channels may exist in the lateral half of the breast and thus may influence identification of positive sentinel nodes. This finding should be taken into account in cases of multicentric breast cancer.
Authors: Mahmoud A Alhussini; Ahmed T Awad; Mohamed H Ashour; Ahmed Abdelateef; Haytham Fayed Journal: Breast Care (Basel) Date: 2016-08-15 Impact factor: 2.860
Authors: Francesco Giammarile; Naomi Alazraki; John N Aarsvold; Riccardo A Audisio; Edwin Glass; Sandra F Grant; Jolanta Kunikowska; Marjut Leidenius; Valeria M Moncayo; Roger F Uren; Wim J G Oyen; Renato A Valdés Olmos; Sergi Vidal Sicart Journal: Eur J Nucl Med Mol Imaging Date: 2013-10-02 Impact factor: 9.236
Authors: Paolo Orsaria; Dimitrios Varvaras; Gianluca Vanni; Giampiero Pagnani; Jacopo Scaggiante; Federico Frusone; Alessandra Vittoria Granai; Giuseppe Petrella; Oreste Claudio Buonomo Journal: Int J Breast Cancer Date: 2014-02-11
Authors: S van Esser; M Hobbelink; J W Van Isselt; W P Th M Mali; I H M Borel Rinkes; R van Hillegersberg Journal: Eur J Nucl Med Mol Imaging Date: 2009-03-25 Impact factor: 9.236