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目的探讨高频超声对甲状腺钙化结节的分型及其诊断价值。方法应用高频超声研究了271例甲状腺疾病患者的声像图,将钙化结节分为4型:①微钙化型;②内部粗大钙化型;③环形或周边粗大钙化型;④假性钙化型,所有病例均经病理证实。结果271例患者中钙化结节122个,其中微钙化型结节57个(恶性48个,良性9个),内部粗大钙化型结节17个(恶性7个,良性10个),环形或周边粗大钙化型结节16个(恶性1个,良性15个),32个假性钙化结节均为良性病变,甲状腺不同类型钙化结节的良恶性具有明显差异。微钙化型结节在甲状腺癌诊断中的敏感度和特异度为65.75%及96.05%。结论甲状腺钙化结节的超声分型有助于鉴别诊断甲状腺结节的良恶性。
Objective To investigate the classification of thyroid calcified nodules by high frequency ultrasound and its diagnostic value. Methods A total of 271 cases of thyroid diseases were studied with high-frequency ultrasound. The calcified nodules were classified into 4 types: ① microcalcification; ② internal coarse calcification; ③ annular or peripheral coarse calcification; ④ false calcification All cases were confirmed by pathology. Results There were 122 calcified nodules in 271 patients, of which 57 were micro-calcified nodules (48 malignant, 9 benign), 17 were internal coarse calcified nodules (7 malignant, 10 benign), annular or peripheral There were 16 coarse calcified nodules (1 malignant, 15 benign) and 32 false calcified nodules, all benign lesions. There were significant differences between benign and malignant calcifications of thyroid gland. The sensitivity and specificity of microcalcified nodules in the diagnosis of thyroid cancer were 65.75% and 96.05%. Conclusion Ultrasound of thyroid calcification nodules is helpful to differentiate the benign and malignant thyroid nodules.