嗜铬细胞瘤的CT诊断

目的:探讨嗜铬细胞瘤的CT表现,提高CT诊断的准确性。方法:搜集经手术和病理证实的17例嗜铬细胞瘤患者的资料,所有病例术前均作超声、CT检查。结果:瘤体呈较大(平均瘤径6.1cm)的类圆形肿块,瘤界清晰,平扫密度多不均匀,10例出现坏死和囊变,肿瘤实体部分多明显强化。结论:嗜铬细胞瘤CT表现具有一定特征,CT可清楚显示肿瘤的部位、形态、大小、瘤内成份及与周围结构的关系,结合临床表现多可明确诊断。

CT Diagnosis of Pheochromocytoma

Objective:To evaluate the CT features of pheochromocytoma and to improve CT diagnostic accuracy.(Methods:)CT findings of 17 surgically and pathologically proved cases of pheochromocytoma were retrospectively studied.Results:All the pheochromocytomas presented as relatively big round or oval and clearly outlined masses with a mean diameter of 6.1cm.Most of the masses were inhomogeneous in density on plain scans.Necrosis and cystic degeneration were commonly found(10/17).Marked enhancement in tumor parenchyma was showed.Conclusion:CT findings of pheochromocytoma revealed certain characteristics.CT examination played an important role in the demonstration of the size,the shape,the location and the components of the tumor as well as its relationship with surroundings.In most of the cases of pheochromocytoma,a reliable diagnosis might be made with CT examination if referring to the patient's clinical pictures as well.