[Sentinel lymph node biopsy in XXXX ].

@entity3557 @entity1 @entity5 @entity1600 @entity6693 @entity3
OBJECTIVE: To investigate the reliability and feasibility of @entity1600 biopsy (SLNB) of @entity3557 using combination of lymphoscintigraphy, the gamma probe and @entity6693 staining techniques. METHODS: Twenty-three consecutive @entity1 with @entity3557 were entered in the study between August 2007 and August 2009. All cases were without clinical evidence of cervical lymph node involvement. The (99)Tc(m)-dextran of 74 MBq (2mCi) was injected intratumorally under ultrasound guidance about 2 h to 5 h prior to surgery. @entity6693 was injected around the @entity5 during surgery. Preoperative lymphoscintigraphy, intra-operative hand-held gamma probe detecting and @entity6693 staining techniques were used to detect the @entity1600 ( @entity1600 ). @entity1600 biopsies were sent to prepare frozen sections and the results were compared with specimen of routine selective neck dissection. RESULTS: The SLNs were identified in all cases with the combination techniques. The @entity1600 identification rates were 87.0% and 100% with @entity6693 staining and lymphoscintigraphy plus probe scanning, respectively. @entity3 in SLNs were revealed by frozen-section histology in 12 @entity1 . In one case, SLNs frozen-section were negative, but @entity3 was detected in routine histology. In other case both @entity1600 and routine histology were negative, but @entity3 was detected in non- @entity1600 (level VI) neck dissection. The overall accuracy of the @entity1600 biopsy was 91.3%, positive predictive value 100% and negative predictive value 81.8%. CONCLUSION: The results seem the @entity1600 biopsy technique is a feasible and valuable method for detecting cervical lymph node @entity3 and is helpful to decide performing neck dissection in @entity1 with cN0 @entity3557 .
