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Intraoperative touch preparation for sentinel lymph node biopsy: a 4-year experience
Ronda S Henry-Tillman1, Soheila Korourian, Isabel T Rubio
1University of Arkansas for Medical Sciences, Akansas Cancer Research Center, Department of Veterans Affairs, Central Arkansas Veterans Healthcare System, Department of Surgery, Little Rock, Arkansas 77205, USA. henryrindas@uams.edu
Annals of Surgical Oncology
|May 3, 2002
Summary
Touch preparation cytology (TPC) is an accurate, simpler, and faster method for intraoperative examination of sentinel lymph nodes (SLNs) in breast cancer patients compared to frozen section (FS). This technique aids in detecting metastasis during surgery.
Area of Science:
- Oncology
- Surgical Pathology
- Diagnostic Cytology
Background:
- The optimal method for intraoperative sentinel lymph node (SLN) examination in breast cancer remains debated.
- Existing techniques show variable sensitivity (60-100%) for metastasis detection.
Purpose of the Study:
- To evaluate the long-term efficacy of touch preparation cytology (TPC) versus frozen section (FS) for intraoperative SLN analysis in breast cancer.
- To compare the accuracy, speed, and simplicity of TPC and FS.
Main Methods:
- A retrospective analysis of 247 operable breast cancer patients undergoing SLN biopsy.
- Intraoperative examination of SLNs using TPC or FS, followed by permanent section analysis.
- SLN identification via radioactive colloid, blue dye, or both.
Main Results:
- TPC demonstrated a sensitivity of 94.2% with a 5.8% false-negative rate for detecting metastasis in 479 SLNs.
- Frozen section (FS) showed a sensitivity of 85.7% with a 15.8% false-negative rate in 165 SLNs.
- TPC had a lower false-positive rate (0.2%) compared to FS (1.4%).
Conclusions:
- Touch preparation cytology (TPC) is a highly accurate method for intraoperative sentinel lymph node examination in breast cancer.
- TPC is simpler and faster than frozen section (FS), making it a preferred technique for intraoperative metastasis detection in SLNs.