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Minimally invasive breast carcinoma staging using lymphatic mapping with radiolabeled dextran
R Offodile1, C Hoh, S H Barsky
1Department of Surgery, University of California-Los Angeles Medical Center, 90095-1782, USA.
Cancer
|May 12, 1998
Summary
Sentinel lymph node biopsy accurately predicts breast cancer metastasis to the axilla. This minimally invasive technique identifies cancer spread, aiding in staging breast carcinoma.
Area of Science:
- Oncology
- Surgical Pathology
- Diagnostic Imaging
Background:
- The sentinel lymph node (SLN) is the first lymph node to receive lymphatic drainage from a primary tumor.
- Accurate staging of breast cancer metastasis is crucial for treatment planning.
Purpose of the Study:
- To evaluate the predictive accuracy of sentinel lymph node status for breast tumor cell metastasis to the axillary lymphatic basin.
Main Methods:
- Radiolabeled dextran injected into breast tumors to locate SLNs using a gamma detector probe.
- Excision of SLNs followed by routine axillary lymph node dissection.
- Histopathological analysis using H & E staining and cytokeratin immunohistochemistry for SLNs.
Main Results:
- Out of 41 patients, 18 had axillary lymph node metastasis.
- In all 18 cases with metastasis, cancer was detected in the SLN(s) via H & E or cytokeratin staining.
Conclusions:
- Sentinel lymph node biopsy reliably predicts breast cancer metastasis to the axilla.
- This minimally invasive method shows promise for staging breast carcinoma.
- Further validation in large clinical trials is recommended.