【摘要】 目的总结甲状腺癌的CT表现,提高其诊断准确性。资料与方法回顾性分析110例经手术病理证实的甲状腺癌的CT表现。结果110例甲状腺癌,101例(92%)表现为低密度,86例(78%)密度不均匀,100例(91%)边缘模糊不规则;71例(65%)出现钙化,其中细颗粒钙化37例(乳头状癌35例,髓样癌2例),混合性钙化26例;14例(13%)表现“囊内乳头状结节”,其中10例“囊内钙化性结节”;29例(26%)出现瘤周“半岛状”瘤结节,21例(19%)出现瘤周“残圈”征;44例(40%)肿瘤侵犯周围器官组织,其中12例表现为颈部转移淋巴结包膜外侵犯;79例(72%)颈部淋巴结转移,其中18例出现淋巴结钙化(细颗粒钙化16例,混合性钙化2例)。结论甲状腺癌的原发灶及转移淋巴结具有一定特征性,CT在对甲状腺肿物的定性、显示肿瘤与周围重要器官的关系方面非常有价值。更多还原

【Abstract】 Objective To analyze and evaluate the CT features of thyroid carcinoma.Materials and Methods CT findings of 110 cases with thyroid carcinoma proved by pathology and surgery were reviewed retrospectively.Results 101 cases (92%) appeared hypodensity, 86 cases (78%) showed heterogeneous density, 100 cases (91%) were ill defined and irregular; 71 cases (65%) were found calcifications, including 37 cases with fine granular calcifications (35 cases papillary carcinoma, 2 cases medullary carcinoma), 26 cases with mixed calcifications. In addition, cystic formation with intracystic papillary like nodules were found in 14 cases (13%), including 10 cases with “calcified nodule in cyst”. “Peninsluar tubercles around the tumor” were revealed in 29 (26%) primary tumors, and “no complete ring around the tumor” were revealed in 21(19%) primary tumors. 44 cases (40%) infiltrated the adjacent structures, including 12 cases of metastatic lymph nodes with extracapsular invasion.79 cases (72%) were revealed metastatic lympadenopathy in the neck, including 16 cases with fine granular calcifications and 2 cases with mixed calcifications.Conclusion Thyroid carcinomas and metastatic lymph nodes have characteristic CT findings, CT is useful in the diagnosis of thyroid carcinoma and predicting tumor invasion to the surrounding organs.更多还原