二维超声诊断甲状腺髓样癌的临床价值

Value of two-dimensional ultrasound diagnosis of medullary thyroid carcinoma

目的 分析二维超声诊断甲状腺髓样癌的临床价值.方法 回顾性分析经手术病理证实的13例甲状腺髓样癌患者的18个癌结节的二维声像图表现.结果 18个癌结节均为低回声,形态不规则13个,边界不清楚14个,纵横比＜1为15个,内部有钙化13个,同侧颈部淋巴结肿大9例.结论 甲状腺髓样癌具有一定的二维声像图特点：结节呈低回声、无明显包膜伴有粗大钙化且分布广,而纵横比＞1且直径＜ 10 mm的低回声、类圆形、无钙化微小结节应警惕甲状腺髓样癌可能.

Objective To analyze the value of two-dimensional ultrasound diagnosis of medullary thyroid carcinoma.Methods The two-dimensional ultrasonographic manifestations of 18 nodules in 13 medullary thyroid carcinoma patients pathologically confirmed were analyzed retrospectively.Results In 18 nodules of medullary thyroid carcinoma,18 nodules were hypoechoic,13 nodules were irregular shaped,14 nodules had unclear boundaries,15 nodules with an aspect ratio less than 1,13 nodules had calcifications and 9 patients had neck lymphatic enlargement.Conclusion Medullary thyroid carcinoma has some two-dimensional ultrasonographic manifestations：hypoechoic nodules,no obvious envelope with coarse calcification and widely distributed,and tiny calcified nodules of hypoechoic,round,non-calcified with an aspect ratio greater than 1 and the diameter less than 10 mm should be wary of medullary thyroid carcinoma.