Objective:To assess the application of ultrasonography in the diagnosis of thyroid diseases with different types of nodules calcification.Methods:160 cases history of thyroid nodules with calcification confirmed by ultrasound diagnosis and pathological examination were performed the retrospective analysis. According to the ultrasonographic features of calcified nodules, it can be divided into type I, type II, type III and type IV, in which there are 210 benign nodules and 120 malignant nodules. Analyze the correlation between the different types of calcification and the benign or malignant thyroid nodules.Results: Type IV of thyroid benign nodules calcification is highest proportion, accounting for 46.7%(98/210), and significant difference (x2=76.27,P<0.05)compared with the other 3 types. Type I calcification in malignant nodules is highest proportion, accounting for 65%(78/120), and significant difference (x2=175.29;P< 0.05) compared with the other 3 types. In 108 cases of benign and malignant type I calcification, the incidence of malignant nodules is higher than benign nodules accounting for 72.2% (78/108), and type I calcium nodules were significantly different between those of benign and malignant (x2=42.67,P<0.05).Conclusions: Ultrasonography in the diagnosis of thyroid diseases with different types of nodules calcification had very important clinical application value. Type I calcified nodule has more important value in the diagnosis of thyroid carcinoma.

Objective:To assess the clinical value of ultrasonic imaging in combination with McGill thyroid nodules score (MTNS) system in differential diagnosis of nodule size and benign and malignant tumors.Methods: The clinical data of a total of 112 patients with thyroid nodules were analyzed retrospectively. The nidus of the patients was identified by ultrasound-guided fine needle aspiration biopsy, and then the MTNS, nodule size and false negative rate of the patients were calculated, respectively.Results: The MTNS of the 112 cases of patients with thyroid nodules was within the range of 1 to 18, with an average score of (6.83±2.31). 16 cases with malignant nodules(the percent was 14.29%) were finally diagnosed by pathology, and 96 cases were diagnosed with benign nodules(the percent was 85.71%). The MTNS of patients with malignant nodules was significantly higher than that of those with benign nodules. Ultrasonic imaging showed that the nodule diameter was within the range of 1 to 8.9cm, with an average diameter of (4.13±4.13)cm. MTNS was positively correlation with nodule diameter (r=0.146,P<0.05). Besides, the average diameter of benign nodules was (3.67±1.60)cm, and that of malignant nodules was (4.23±1.51)cm. The missed diagnosed malignant nodules mainly were large diameter nodules.Conclusion: Ultrasound imaging in combination with MTNS can better predict the benign or malignant risk of thyroid nodules.