摘要
目的:对照病理,探讨甲状腺微小乳头状癌(PTMC)的声像图特征。方法 :回顾性分析106例病例中122个病灶的超声图像特征及相应组织病理学表现。结果:63.9%病灶边界不清,其余边界清楚;少部分病灶有囊变(2.5%);30.3%有晕征;近一半的病灶有微钙化(45.9%);60%病灶评分为3分或3分以上。病灶内乳头结构和纤维间质的比例决定了病灶的回声。边界清楚的晕征与纤维假包膜相关。微钙化的病灶内可发现砂砾体。结论:PTMC的声像图特征与组织病理学特点相符,边界不清、低回声、微钙化、弹性评分≥3对PTMC的诊断具有重大意义。
Objective： To observe the imaging appearances of ultrasound in papillary thyroid microcarcinoma（PTMC）, correlated with the histopathologic findings. Methods： The US results from 106 cases of PTMC with 122 nodules and correlated the results with the histopathologic findings were retrospectively evaluated. Results： The 63.9% of the PTMC nodules had an ill-defined boundary and the remaining had a well-defined boundary. A few（2.5%） of the PTMC nodules had a cystic element.The 30.3% of the nodules had a halo sign. Microcalcification was present in approximately half of the PTMC nodules. The rate of ultrasonic elastography（UE）≥3 is 60%. The amount of papillary structure and the fibrous stroma in the cancerous tissue determined the echogenicity of the nodule. A halo sign with a well-defined boundary was associated with the presence of an intact fibrous pseudo-capsule. Psammoma bodies were detectable on US as microcalcifications. Conclusion： The ultrasound findings of PTMC are correlated with its histopathological category. The ＂ill-defined boundary＂, ＂hypoecho＂, ＂microcalcification＂, ＂ultrasonic elastography（UE）≥3＂ are useful for the diagnosis of PTMC.
出处
《中国临床医学影像杂志》
CAS
北大核心
2016年第4期236-238,共3页
Journal of China Clinic Medical Imaging
关键词
甲状腺肿瘤
癌
乳头状
超声检查
Thyroid neoplasms
Carcinoma
papillary
Ultrasonography
