RESUMO
Objective To assess the value of ultrasonography in distinguishing pharyngoesophageal diverticulum from thyroid nodule.Methods High-frequency sonography was used to detect the size,shape, echo and blood flow of cervix masses in 1219 patients in a lateral decubitus position after drinking water. Results On enhanced power,the image changing rates of pharyngcesophageal diverticulum and thyroid nodule were 71.43% and 14.19% respectively,and their difference was statistically significant(P<0.05). On drinking water,the image change rates of pharyngoesophageal diverticulum and thymid nodule were 100.00% and 1.98% respectively,and their difference was statisfically significant(P<0.05).The detection rates for pharyngoesophageal diverticulum and thyroid nodule were 0.098% and 17.042% respectively. Conclusions Ultrasound examination is of value in distinguishing pharyngoesophageal diverticulum from thyroid nodule in general health check up and regular health examination.