肾上腺神经节细胞瘤的CT诊断  

CT diagnosis of adrenal ganglioneuroma

作　　者：李然[1] 张伟国[1] 王毅[1] 陈蓉[1] 熊坤林[1] 马强[2] 

机构地区：[1]第三军医大学大坪医院野战外科研究所放射科,重庆400042 [2]第三军医大学大坪医院野战外科研究所病理科,重庆400042

出　　处：《医学影像学杂志》2013年第7期1069-1071,1084,共4页Journal of Medical Imaging

摘　　要：目的探讨肾上腺神经节瘤的CT表现及病理特点，以提高其诊断准确性。方法回顾性地分析我院经病理证实的7例肾上腺神经节瘤，所有病例术前均接受CT平扫及增强扫描，将CT结果和病理进行对照分析。结果7例肾上腺神经节瘤中，5例发生于右侧，2例发生于左侧。5例神经节瘤内出现钙化。肿瘤直径为3．6～8．0cm，平均为5．7cm。肿瘤平扫CT值为24～37HU，平均值为30．4HU；增强动脉期cT值为31～42Hu，平均为36．7HU，增强静脉期CT值为39～55HU，平均值为45．6HU，均呈较明显的渐进性强化。7例肿瘤均边界清晰，3例呈“伪足”样生长，3例肿瘤推压下腔静脉使其移位，但形态无改变，2例肿瘤被对比剂填充的下腔静脉压迫变形。结论肾上腺神经节瘤是一种少见的良性肿瘤，在影像学上具有一定的特征性，最后确诊仍依靠病理学检查。Objective To explore the CT appearances of adrenal ganglioneuromas and to improve the diagnosis. Methods All 7 cases patients with adrenal ganglioneuromas confirmed by pathology underwent MSCT plain scanning and dynamic enhancement scanning before operation. The CT appearances were reviewed and analyzed in comparison with surgical and pathological results. Results 6 of 7 tumors were located in right and i left. Calcification were found in 5 cases. The diameter of the tumors was 3.6-8.0 cm anda mean diameter was 5.7 cm, the CT value of the plain scans, AP phases and PVP phases was 24--37 HU （with a mean value of 30.4 HU）, 31-42 HU （with a mean value of 36.7 HU）. and 39-55 HU （with a mean value of 45.6 HU）, it manifested gradual enhancement. The border of 7 tumors was clear, the form of 3 tumors showed a tendency of wedging into the space between the adjacent organs and structures, 3 tumors depressed the inferior vena cava（IVC）, but the form of inferior vena cava was normal, in contrast, 2 tumors were depressed by the infe- rior vena cava with form deformities. Conclusion The adrenal ganglioneuroma has some characteristic imaging appearance. It is possible to make correct diagnosis and differential diagnosis before operation.

关 键 词：神经节瘤 肾上腺 体层摄影术 X线计算机 

分 类 号：R376.6[医药卫生—病原生物学]