Objective To investigate a
method to detect the
sentinel lymph nodes(SN) of
thyroid papillary carcinoma and its predictive value for cervical
metastasis of
carcinoma.
Methods Intraoperative
methylene blue dye mapping was performed in 24 cases of
thyroid papillary carcinoma. The coincidence rate of
frozen section pathology and routine section
pathology of SN was observed,and the predictive value of SN for (
metastasis) of the cervical
lymph nodes was noted. Results SN was successfully detected in 21(87.5%) of 24 cases. The average number of SN was 3 nodes. There was one false negative case, the false negative rate was 4.8%(1/24), and no false positive cases were found. The predictive value of
sentinel lymph nodes to (cervical)
lymph node metastasis was 83.3%.Conclusions
Methylene blue staining to identify
sentinel lymph nodes could accurately predict the status of cervical
lymph node metastasis of
thyroid papillary carcinoma.