摘要
目的：探讨MSCT对肾上腺嗜铬细胞瘤的诊断价值。方法收集本院经手术和病理证实的32例肾上腺嗜铬细胞瘤患者的资料，其中男13例，女19例，年龄14～70岁，平均31岁。所有病例术前均行MSCT平扫和增强扫描（动脉期、静脉期），部分病例行MPR、MIP等后处理，回顾性分析其CT表现。结果本组32例共34个病灶，其中单发30例，多发2例；CT扫描显示，肿瘤呈较大的圆形或类圆形软组织肿块（平均直径4．8cm），边界清楚，平扫密度多不均匀，其中26例均伴有出血、坏死和囊变，增强扫描肿瘤多为不均匀明显强化，动静脉期肿瘤实性部分明显强化，低密度坏死囊变区始终未见强化。 MPR及MIP等后处理能清晰显示肿瘤的大小、部位、形态、血供、内部情况及周围结构的关系。结论MSCT对肾上腺嗜铬细胞瘤的诊断具有重要价值，嗜铬细胞瘤的CT表现具有一定的特征性，结合MPR、MIP等后处理、临床资料和实验室检查，即可明确诊断。
Objective To evaluate value of multislice spiral CT （ MSCT ） in the diagnosis of adrenal pheochromocytoma . Methods A retrospective analysis of 32 pathologically confirmed cases of adrenal pheochromocytoma was conducted , including 13 males and 19 females, aged 14~70 years, mean 31 years old.All patients underwent MSCT scan and enhanced scan （arterial and venous phase ） , some CT images were reconstructed using multiplanar reconstruction （ MPR） and maximum intensity projec-tion （MIP） .CT features of these tumors were retrospectively analyzed .Results 32 cases included a total of 34 lesions, 30 ca-ses of single , 2 cases of multiple;CT plain scan showed the tumors were large round or quasi-circular soft tissue mass （ average diameter 4.8 cm）, clear boundary, uneven density, of wihch 26 lesions were associated with hemorrhage , necrosis and cystic de-generation .On enhancement scan most tumors indicated uneven obvious enhancement , the solid part of the tumors showed obvious enhancement on arterial phase and venous phase , and the low-density cystic necrosis part of the tumors indicated always no en-hancement.The reconstructed images by MPR and MIP can clearly show tumor size , location, shape, blood supply, the internal situation and around the structure .Conclusion MSCT may provide valuable inform ation for diagnosing adrenal pheochromocyto-ma, which has certain characteristics on MSCT , can be clearly diagnosed combining with some post-processing functions as MPR and MIP, clinical data and laboratory examination .
出处
《医学影像学杂志》
2016年第3期492-495,共4页
Journal of Medical Imaging
