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Pilot study on sentinel node biopsy in breast cancer.
S Imoto1, H Fukukita, K Murakami
1Division of Breast Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, Japan. simoto@east.ncc.go.jp
Journal of Surgical Oncology
|March 30, 2000
Summary
Sentinel lymph node biopsy (SNB) using indigo carmine dye is a reliable method for breast cancer staging. The combined SNB approach demonstrated high accuracy in identifying sentinel lymph nodes (SLNs).
Area of Science:
- Surgical Oncology
- Breast Cancer Research
- Diagnostic Imaging
Background:
- Sentinel lymph node biopsy (SNB) using indigo carmine dye was initiated in January 1998.
- Initial experience showed SNB feasibility and reliability in breast cancer staging.
- Sentinel lymph nodes (SLNs) were identified in 74% of initial breast cancer cases.
Purpose of the Study:
- To assess the efficacy of lymphatic mapping in breast cancer.
- To evaluate the performance of SNB using dye or a combined method.
- To determine the optimal method for SLN identification in breast cancer.
Main Methods:
- Lymphatic mapping was performed using technetium-99m radiotracers.
- A pilot study utilized SNB with dye or a combined approach (August 1998 - January 1999).
- Immediate frozen sectioning was employed for SLN diagnosis in some cases.
Main Results:
- SLNs were identified in 93% of cases during the pilot study.
- The combined SNB method achieved 92% sensitivity and 96% accuracy.
- Frozen section analysis of SLNs yielded 89% sensitivity and 96% accuracy.
Conclusions:
- The combined method of SNB proved to be the most effective for identifying SLNs in breast cancer patients.
- SNB is a feasible and reliable technique for breast cancer staging.
- Accurate SLN identification is crucial for effective breast cancer management.