儿童甲状腺病变MRI诊断

发布时间：2018-06-07 02:26

本文选题：儿童 + 甲状腺肿瘤　；参考：《中国医学影像技术》2015年03期

【摘要】：目的观察儿童甲状腺病变的MRI影像学表现。方法回顾性分析49例临床病理确诊的儿童甲状病变MRI表现。结果 49例甲状腺病变中,单纯甲状腺囊肿2例、结节性甲状腺肿2例、甲状腺腺瘤9例、甲状腺脓肿13例、桥本甲状腺炎2例、甲状腺癌18例,淋巴瘤累及甲状腺3例。MRI表现为甲状腺体积无显著增大或局限性、弥漫性增大,腺体内可见囊性、实性或囊实性混杂结节样信号。良性病变中92.86%(26/28)T1WI信号、100%(28/28)T2WI信号均较恶性病变信号略高。80.95%(17/21)的恶性病变DWI呈中等信号,略低于甲状腺脓肿壁DWI信号、且略高于甲状腺腺瘤信号;15例(15/28,53.57%)良性病变DWI信号较恶性病变略低。恶性病变中转移性淋巴结DWI呈高信号。结论儿童甲状腺病变的MRI表现具有一定的特征性,DWI序列可协助鉴别良恶性病变。
[Abstract]:Objective to observe the MRI imaging findings of thyroid lesions in children. Methods MRI findings of 49 children with thyroid lesions confirmed by clinical pathology were retrospectively analyzed. Results among 49 cases of thyroid diseases, there were 2 cases of simple thyroid cyst, 2 cases of nodular goiter, 9 cases of thyroid adenoma, 13 cases of thyroid abscess, 2 cases of Hashimoto's thyroiditis and 18 cases of thyroid carcinoma. MRI showed no significant increase or localization of thyroid volume, diffuse enlargement, cystic, solid or cystic mixed nodular signal. In benign lesions, the signal intensity of 92.86%(26/28)T1WI was slightly higher than that of malignant lesions. The signal intensity of DWI in benign lesions was slightly higher than that in malignant lesions. The signal intensity of DWI in malignant lesions was slightly lower than that in thyroid abscess walls, and was slightly higher than that in thyroid adenomas (n = 15, 15 / 28 53.57) the DWI signal of benign lesions was slightly lower than that of malignant lesions. DWI of metastatic lymph nodes showed high signal intensity in malignant lesions. Conclusion the MRI findings of thyroid lesions in children have some characteristics and can be helpful in differentiating benign and malignant lesions.
【作者单位】：首都医科大学附属北京儿童医院影像中心;
【分类号】：R445.2;R725.8

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