摘要
目的探讨甲状腺良恶性结节声像图表现及鉴别诊断。方法对经手术病理证实的60例甲状腺良性结节和21例恶性结节的超声二维及彩色多普勒血流声像图(CDFI)表现进行对比分析。结果良恶性结甲在形态,边界,内部回声,彩色血流分布,阻力指数,颈部淋巴结肿大等指标有统计学显著性差异。结论形态不规整,边界不清,内部不均匀低回声,微钙化,内部血流丰富而周边少或无血流,RI>0.7等可以作为恶性结节的主要指标;不清晰、不完整、宽窄不一的晕环及颈部淋巴结肿大高度提示恶性;囊性结节可作为排除恶性指标。微小乳头状癌结节及良恶性并发的多源性结节常常会被误诊。
Objective To assess the role of uhrasonography（US） for differentiating benign from malignant thyroid nodules. Methods Eighty-one patients with surgically and pathologically proved thyroid nodules which comprised 60 benign and 21 malignant underwent 2-D US and color Doppler flow imaging （CDFI）. The ultrasonic findings between benign and malignant thyroid nodules were comparatively analyzed. Results There were significantly statistic differences for the shape, margin, internal echogenieity, color blood flow distribution, resistance index （RI）, and neck lymphadenovarix between benign and malignant nodules. Conclusion The irregular shape, ill-defined margin, intranodular nonhomogeneous hypoecho, microcalcification, hypervaseularity, perinodular hypovaseularity or even non-vascularity, and RI〉0.7 could be considered as main indices of malignant nodules, ill-defined-, incomplete-, different thick halo signs and neck lymphadenovarix were highly suggestive of malignant nodules, while cystic nodule was ruling out index for malignant nodule. The small nodules of papillary carcinoma and polyphyletie nodules of benign and malignant coexistence will be frequently misdiagnosed.
出处
《实用医学影像杂志》
2009年第4期247-249,共3页
Journal of Practical Medical Imaging
关键词
甲状腺
结节
恶性
超声
Thyroid
Nodule, malignant
Uhrasonography
