甲状旁腺腺瘤CT诊断

CT Diagnosis of Parathyroid Adenoma

目的:探讨甲状旁腺腺瘤的CT诊断价值。方法:回顾性分析9例经手术病理证实为甲状旁腺腺瘤的CT及临床资料。结果:9例甲状旁腺腺瘤均起源于下甲状旁腺,右侧3例,左侧6例,均位于气管外血管内间隙。肿瘤呈卵圆形,边缘光滑完整,大小为0.9cm×1.0cm～4.0cm×6.0cm。平扫肿瘤呈等密度,较正常甲状腺为低密度。增强后9例肿瘤均有不同程度强化,但均较周围血管密度及正常甲状腺密度低,增强后肿瘤呈均匀强化者7例,2例肿瘤内可见坏死不强化区。结论:增强CT检查可准确显示甲状旁腺腺瘤的部位、形态、大小及其与周围结构的关系,对临床诊治有重要价值。

Objective：To study the value of CT in the diagnosis of parathyroid adenoma. Methods：The clinical materi als and CT findings of 9 patients with surgery and pathology proved parathyroid adenoma were retrospectively analyzed. Results： All of the parathyroid adenomas were originated from the inferior pole of parathyroid gland with 3 cases at the right side and 6 cases at the left side. All located at the recess between trachea and blood vessels. Tumors were oval in shape,well demarcated, with the size of 0.9cm × 1.0cm～4.0cm × 6.0cm, iso-attenuated yet higher than that of thyroid gland on plain scan. After contrast medium administration, the adenomas revealed enhancement with various degrees but lower than that of thyroid and adjacent blood vessels. 7 cases of adenomas enhanced homogeneously,2 cases showed no enhancement in the region of necrosis. Conclusion：The location, shape, size,and the relationship with surrounding structures of parathyroid adenoma could be precisely displayed on enhanced CT,which is valuable for the diagnosis and clinical management.