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Lymphatic mapping with sentinel node biopsy in pediatric patients.

H L Neville¹, R J Andrassy, K P Lally

¹Department of Surgery, University of Texas-Houston Medical School, the Memorial Hermann Children's Hospital, and the University of Texas MD Anderson Cancer Center, USA.

Journal of Pediatric Surgery

|June 29, 2000

Summary

Sentinel lymph node biopsy is a safe and effective technique for pediatric skin and soft tissue malignancies. This method accurately determines nodal status, guiding further treatment decisions in children.

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Area of Science:

Oncology
Pediatric Surgery
Surgical Pathology

Background:

Sentinel lymph node biopsy (SLNB) is standard for adult melanoma and breast cancer.
It accurately determines nodal status, avoiding extensive lymph node dissection.
This technique's application in pediatric oncology is less established.

Purpose of the Study:

To evaluate the initial experience and safety of SLNB in pediatric patients.
To assess the utility of SLNB in staging pediatric skin and soft tissue malignancies.
To determine the accuracy of SLNB in identifying nodal metastases.

Main Methods:

Retrospective review of pediatric patients undergoing SLNB.
Lymphoscintigraphy and dual tracer injection (Technetium-99m sulfur colloid and Lymphazurin blue).

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Identification and removal of sentinel nodes for pathological examination.

Main Results:

13 children (mean age 7 years) with various malignancies underwent SLNB.
6 patients had positive sentinel nodes, with 1 showing micrometastases.
No complications related to the procedure were reported.

Conclusions:

SLNB using dual tracers is safe in pediatric patients with skin and soft tissue malignancies.
The technique accurately identifies nodal involvement.
Long-term follow-up is needed to confirm its utility and accuracy in pediatric oncology.