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目的探讨甲状腺乳头状微小癌(PTMC)与非微小癌(non-PTMC)的超声特征及其诊断价值。方法回顾性分析经超声检出的253个甲状腺癌(PTC)结节的声像图特征,将其分为2组,最大径≤10 mm(PTMC),最大径>10mm(non-PTMC)。对比二组结节声像图在形态、边界、内部回声、后方回声、纵横比、血流、钙化、颈部淋巴结转移方面的差异。结果病理共266个结节,PTMC 135个,non-PTMC 131个。超声检出253个结节,PTMC 121个,漏诊21个,误诊7个;non-PTMC 132个,漏诊4个,误诊5个。PTMC与non-PTMC在边界、纵横比、内部回声、血流、颈部淋巴结转移差异有统计学意义(P<0.05),而在形态、钙化、后方回声上差异无统计学意义(P>0.05)。结论 PTMC与non-PTMC超声声像图具有一定差异。
Objective To investigate the ultrasonographic features and their diagnostic value of papillary thyroid carcinoma (PTMC) and non-small cell carcinoma (non-PTMC). Methods The sonographic features of 253 thyroid cancer (PTC) nodules were retrospectively analyzed. They were divided into 2 groups: maximum diameter ≤ 10 mm (PTMC) and maximum diameter> 10 mm (non-PTMC). The differences of morphology, boundary, internal echo, posterior echo, aspect ratio, blood flow, calcification, and cervical lymph node metastasis were compared between the two groups. Results There were 266 nodules in pathology, 135 in PTMC and 131 in non-PTMC. A total of 253 nodules were detected by ultrasonography, including 121 PTMCs, 21 missed diagnosis, 7 misdiagnosis cases, 132 non-PTMC cases, 4 misdiagnosis cases and 5 misdiagnosis cases. The differences of border, aspect ratio, internal echo, blood flow and cervical lymph node metastasis between PTMC and non-PTMC were statistically significant (P <0.05), but there was no significant difference in morphology, calcification and posterior echo ). Conclusion There are some differences between PTMC and non-PTMC sonography.