目的：探讨高频超声诊断甲状腺微小乳头状癌(PTMC)的诊断价值。方法分析经手术病理证实的52例（61个癌结节）PTMC、67例（74个）最大直径≤1 cm的甲状腺良性结节患者的高频超声表现，观察结节边缘、形态、内部回声、纵横比、微钙化、血流分布、是否伴颈部淋巴结肿大，进行对照分析。结果 PTMC超声表现为边缘毛糙（64.7％）、形态不规则（64.7％）、纵横比>1（66.8％）、内部极低回声（51.4％）、微小钙化（66.8％）、内部血流丰富周边血流少（30.1％），颈部及锁骨上可探及肿大淋巴结（26.8％）。良性结节表现为边缘毛糙（7.2％）、形态不规则（6.4％）、纵横比>1（6.7％）、内部极低回声（6.4％）、微小钙化（4.3％）、内部血流丰富周边血流少（30.1％），颈部及锁骨上可探及肿大淋巴结（4.1％）。 PTMC上述超声特征明显高于甲状腺良性结节，各项差异有统计学意义（P<0.05）。结论 PTMC高频超声表现具有一定特异性，高频超声对诊断PTMC具有重要价值。%Objective To investigatethe high-frequency Ultrasound value in diagnosing of papil ary thyroid microcarcil om. Methods Analyzed the high-frequency ultrasound performances of 52 cases (61 nodules) PTMC, 67 cases (74 nodules) benign thyroid nodules with maximum diameter ≤1 cm proved by pathology.To observe and compare the nodules edge, shape, internal echo, aspect ratio, microcalcifications, blood flow distribution, whether with cervical lymph nodes. Results PTMC ultrasound showed :rough edges (64.7%), irregular (64.7%), aspect ratio> 1 (66.8%), the internal low echo (51.4%), microcalcifications (66.8%), peripheral blood inside rich blood flow less (30.1%), neck and supraclavicular lymph nodes could be detected (26.8%). Benign nodules showed:rough edges (7.2%), irregular (6.4%), aspect ratio>1 (6.7%), the internal low echo (6.4%), microcalcifications (4.3%), the internal peripheral blood rich flow less (30.1%), neck and supraclavicular lymph nodes could be detected (4.1%).The sonographic features of PTMC was significantly higher than benign thyroid nodules, the dif erence was statistical y significant (P <0.05). Conclusion The specific frequency ultrasound performance of PTMC had some specificity and had great value in the diagnosis of PTMC.
展开▼
