甲状腺癌的CT诊断研究

The Study on CT Diagnosis of Thyroid Carcinoma

目的评价甲状腺癌的CT诊断价值。方法回顾性分析46例甲状腺癌患者术前CT检查及术后病理检查结果。结果所有病例CT扫描均可见肿块,其边缘均不清楚,呈浸润性生长。36例肿瘤为实性,患侧甲状腺体积增大,失去正常解剖形态,其密度不均匀,均可见不同程度的低密度区,无明确分界;增强扫描肿瘤呈不均匀强化。10例为囊性,伴高密度乳头状结节,囊壁厚薄不均,囊壁及结节有钙化。气管受侵12例,颈鞘血管受侵8例,食管受侵4例。颈部淋巴结转移22例,同侧转移14例,双侧转移9例。结论甲状腺癌的CT表现具有一定特征性,可作为判断甲状腺癌有无侵犯颈鞘血管和气管的依据,为选择临床治疗方法提供参考依据。

Objective To explore the value of CT in the diagnosis of thyroid carcinoma. Methods Fourty-six cases of thyroid carcinoma, pathologyically proven, were retrospectively analyzed for CT and histological findings. Results All the 46 patients demonstrated detectable masses on the CT images. Thirty-six of them were solid masses, with enlargement of the involved thyroid gland. There were inhomogeneous enhancement of the tumor after injection of the contrast material. Ten of them were cystic masses, with high density nodules adhere to the irregular cystic wall. There were scattered calcification located in the cystic wall and the nodules. The surrounding structures were involved, involvement of trachea, vessel sheath in 12 cases, vessel sheath in 8 patients. esophagus in 4 cases. There were lymph node metastases in 22 patiens, 14 unilateral and 9 bilateral. Conclusion Some cases of thyroid carcinoma can be diagnosed correctly on CT. CT is useful in the detection of vessel sheath and trachea invasion by the thyroid carcinoma. CT scan can provide reliable information in selecting therapeutic methods.