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Sentinel Lymph Node Biopsy in pediatric soft tissue sarcoma patients: Utility and concordance with imaging

Abstract Background The purpose of this study was to report our experience with sentinel lymph node biopsy (SLNB) for pediatric soft tissue sarcomas to add to the limited literature about its feasibility, utility, and concordance with pre-operative imaging, including CT and18 F-FDG PET (PET) scannin...

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Published in:Journal of pediatric surgery 2013-09, Vol.48 (9), p.1903-1906
Main Authors: Alcorn, Kaitlyn M, Deans, Katherine J, Congeni, Anthony, Sulkowski, Jason P, Bagatell, Rochelle, Mattei, Peter, Minneci, Peter C
Format: Article
Language:English
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Summary:Abstract Background The purpose of this study was to report our experience with sentinel lymph node biopsy (SLNB) for pediatric soft tissue sarcomas to add to the limited literature about its feasibility, utility, and concordance with pre-operative imaging, including CT and18 F-FDG PET (PET) scanning. Methods Medical records of patients with a sarcoma who underwent SLNB as part of their treatment for a soft tissue sarcoma at our institution from 2000 to 2011 were identified and reviewed. Results Eight patients underwent SLNB for soft tissue sarcoma during the study period. Two patients had positive SLNBs; both of these patients had rhabdomyosarcoma. Three patients with pathologically enlarged lymph nodes on CT scan underwent PET functional imaging prior to SLNB. The PET suggested the presence of nodal disease in all three patients; however, only one of these patients had a positive SLNB. Conclusions Our series confirms that SLNB is feasible in pediatric sarcoma patients. Small numbers preclude definitive conclusions regarding the utility of SLNB compared with PET, however our data suggest functional imaging alone may not be sufficient to definitively determine lymph node status in these patients. Surgical lymph node sampling may still need to be performed to accurately identify nodal status in pediatric patients with soft tissue sarcoma.
ISSN:0022-3468
1531-5037
DOI:10.1016/j.jpedsurg.2013.04.013