摘要
目的探讨MSCT对于结节性桥本氏甲状腺炎(NHT)的诊断价值。方法回顾性分析和总结经手术病理或穿刺活检证实的40例(47个结节)NHT患者的MSCT表现,所有病例均行平扫和增强扫描。结果 19个结节发生在正常甲状腺实质背景,28个发生在弥漫性桥本氏甲状腺炎背景。35个为单发,12个为多发。47个结节均为实性,且45个密度均匀。在正常甲状腺实质背景下,17个为低密度,2个为等密度;在弥漫性桥本氏甲状腺炎背景下,15个为低密度,13个为等或稍高密度。43个呈类圆形,39个未超出甲状腺轮廓生长。平扫时,42个显示边界模糊,增强扫描43个显示边界模糊。40个纵横比<1。44个结节未见微小钙化。增强扫描时,31个显示强化程度较周围甲状腺实质背景低,16个强化程度与周围甲状腺实质背景一致。14例颈部出现肿大淋巴结。结论甲状腺内等、低密度圆形实性结节,边界模糊、纵横比<1、未超出甲状腺轮廓生长、无微小钙化,强化程度较周围甲状腺实质略低或一致,强化后结节边界仍模糊,上述特点有助于诊断NHT。
Objective To explore the diagnostic value of MSCT in nodular Hashimoto＇s thyroiditis （NHT）. Methods The MSCT findings of 40 patients （47 nodules） with NHT confirmed by surgery or histopathologieal examination were analyzed retrospectively. All patients underwent scan and enhancement. Results Among all 47 nodules, 19 were located in normal thyroid parenchyma, 28 in the background of diffuse Hashimoto＇s thyroiditis. 35 cases were single and 12 were multiple. 47 cases were solid, and 45 were uniform density. In the normal thyroid background, 17 were low density, 2 were isopycnotie. However, in the background of diffuse Hashimoto＇s thyroiditis, 15 were low density and 13 were isopycnotic or slightly high density. 43 cases were round, 39 did not exceed the growth of thyroid profile. In scan, 42 cases showed fuzzy boundaries, and 43 cases with enhanced scan showed the fuzzy boundary. In 40 cases, the aspect ratio was less than 1. In 44 cases, there was no microealeifieation. The enhancement rate of lesions of 31 cases did not exceed the same level of thyroids, 16 were consistent with the same level of thyroids. 14 cases were accompanied with enlarged lymph nodes in neck. Conclusion In the thyroid, round solid nodules with low density, fuzzy boundaries, aspect ratio 〈 1, did not exceed the growth of thyroid profile, no microcalcification, the enhancement rate of lesions was low or consistent, after enhanced scans were still fuzzy boundaries, these features contributed to the diagnosis of NHT.
出处
《临床放射学杂志》
CSCD
北大核心
2015年第11期1734-1737,共4页
Journal of Clinical Radiology
