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目的探讨腹部异位嗜铬细胞瘤的影像特征。方法结合文献对9例腹部异位嗜铬细胞瘤的影像表现进行描述与分析。结果 9例异位嗜铬细胞瘤均异位于腹膜后,其中既有双侧肾上腺原发灶又有异位于腹主动脉旁的1例。瘤体多大于3cm,有完整或部分的包膜及壁,病变边缘多呈不规则形或分叶状,其内坏死囊变多见而钙化少见,增强后均有明显或较明显环状强化内部或呈多房性强化。结论根据CT及MRI改变和典型的临床表现可对异位嗜铬细胞瘤可作出比较正确的定位、定性诊断。
Objective To investigate the imaging features of ectopic pheochromocytoma in abdomen. Methods Combined with the literature description of 9 cases of abdominal ectopic pheochromocytoma imaging performance analysis and description. Results All the 9 cases of ectopic pheochromocytomas were located in the retroperitoneum. Among them, there were 1 case with bilateral adrenal primary lesions and allopathic abdominal aorta. Tumor more than 3cm, with complete or partial capsule and wall, the edge of the lesions were irregular or lobulated, the more common necrosis of cystic degeneration and calcification rare, were significantly enhanced or more pronounced ring enhancement Internal or multi-room enhancement. Conclusion According to the changes of CT and MRI and the typical clinical manifestations, we can make a more accurate localization and qualitative diagnosis of ectopic pheochromocytoma.