The Clinical Study Of The Regularity Of Lymph Node Metastasis In Papillary Thyroid Carcinoma

Objective To compare the preoperative results of Color Doppler Ultrasonographyand CT with the afteroperative results of pathological sections. To study thecharacteristic of Color Doppler Ultrasonography and CT, and the coincidence level withtheir results and the results of pathological sections. To discuss the regularity of cervicallymph node metastasis in papillary thyroid carcinoma, for the purpose of instructing thesurgical management of papillary thyroid carcinoma.Methods The clinical data of310cases of papillary thyroid carcinoma(PTC)treated in our hospital between January2008and January2012were analyzedretrospectively. Compared the preoperative results of Color Doppler Ultrasonographyand CT with the afteroperative results of pathological sections, we statistics theircoincidence level. In order to finding the regularity of cervical lymph node metastasis inpapillary thyroid carcinoma, we analyse the cervical lymph node metastasis of thesepatients, and investigate the relationship between VI region lymph node metastasis andII+III+IV lymph node metastasis.Results The sensitivity of Color Doppler Ultrasonography was78.3%; thesensitivity of CT was40.1%.When the diameter of primary tumor was more than0.1cm,the amicula was invaded, mulifocality or age>45, the rate of ipsilateral andcontralateral VI region lymph node metastasis was higher than that the diameter ofprimary tumor was≤1.0cm, the amicula was not invaded, no-mulifocality and age<45（P＜0.05，P＜0.01﹚；the rate of contralateral II+III+IV region cervical lymph nodemetastasis markedly increased in the patients with the the primary tumor diameter>1.0cm, amicula invasion, multifocality or age>45years（P＜0.05，P＜0.01﹚.Conclusions1. Color Doppler Ultrasonography can find more enlarged lymphthan CT, therefore Color Doppler Ultrasonography prefer to detect the cervical lymph node metastasis. However, CT was more sensitive to tumor boundaries, the relationshipbetween tumor and neighboring organizations.2. The most common pattern of lymph node metastasis in papillary thyroidcarcinoma was:migrating to VI region cervical lymph node in the first, then toII+III+IV region lymph node.