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Subareolar injection is a better technique for sentinel lymph node biopsy
L F Smith1, M J Cross, V S Klimberg
1Department of Surgery, Division of Breast Surgical Oncology, University of Arkansas for Medical Sciences, John L. McClellan Memorial Veterans Hospital, Little Rock, Arkansas 72205, USA.
American Journal of Surgery
|February 22, 2001
Summary
Subareolar injection of technetium-99 sulfur colloid is a highly accurate method for sentinel lymph node (SLN) localization. This technique demonstrated a 0% false-negative rate, outperforming traditional peritumoral injection methods.
Area of Science:
- Oncology
- Surgical Oncology
- Nuclear Medicine
Background:
- Accurate sentinel lymph node (SLN) localization is crucial for staging various cancers.
- Existing techniques for SLN identification often involve peritumoral injections.
- The study investigated an alternative subareolar injection method for SLN localization.
Purpose of the Study:
- To compare the efficacy of subareolar versus peritumoral injection of technetium-99 sulfur colloid for sentinel lymph node localization.
- To evaluate the accuracy and false-negative rates of each injection technique.
Main Methods:
- A prospective study involving 38 patients undergoing SLN biopsy.
- Patients received either peritumoral or subareolar injection of technetium-99 sulfur colloid and blue dye.
- Sentinel lymph nodes were identified using a hand-held gamma probe.
Main Results:
- Subareolar injection successfully localized SLNs in all 19 patients (100%).
- Peritumoral injection localized SLNs in 18 of 19 patients (94.7%).
- The false-negative rate was 0% for subareolar injection compared to 20% for peritumoral injection.
Conclusions:
- Subareolar injection is a highly accurate and potentially superior method for SLN localization compared to peritumoral injection.
- This simpler technique may reduce the need for image guidance in non-palpable lesions.
- Subareolar injection offers a promising alternative for improving SLN biopsy outcomes.