Sentinel node detection in N0 XXXX of the pharynx and larynx.

@entity1 @entity1136 @entity0 @entity66 @entity5 @entity957 @entity189 @entity3121 @entity3 @entity320 @entity213
Neck lymph node status is the most important factor for prognosis in @entity213 . Sentinel node detection reliably predicts the lymph node status in @entity320 and @entity0 @entity1 . This study evaluates the predictive value of sentinel node detection in 50 @entity1 suffering from @entity189 with a N0 neck as assessed by ultrasound imaging. Following @entity1136 nanocolloid injection in the perimeter of the @entity5 intraoperative sentinel node detection was performed during lymph node dissection. Postoperatively the histological results of the sentinel nodes were compared with the excised neck dissection specimen. Identification of sentinel nodes was successful in all 50 @entity1 with a sensitivity of 89%. In eight cases the sentinel node showed @entity66 ( @entity3121 ). In 41 @entity1 the sentinel node was @entity5 negative reflecting the correct neck lymph node status (pN0). We observed one false-negative result. In this case the sentinel node was free of @entity5 , whereas a neighbouring lymph node contained a lymph node @entity3 ( @entity3121 ). Although we have shown, that skipping of nodal basins can occur, this technique still reliably identifies the sentinel nodes of @entity1 with @entity957 of the pharynx and larynx. Future studies must show, if sentinel node detection is suitable to limit the extent of lymph node dissection in clinically N0 necks of @entity1 suffering from pharyngeal and @entity957 .
