Conclusions:DSA is necessary for diagnosing large adrenal pheochromocytoma in some cases,since it is poorly differentiated from the tumor of adjacent organs on MRI.

• 结论：较大肾上腺嗜铬细胞瘤与邻近脏器肿瘤的MR表现极为相似，确诊须依赖肾上腺动脉造影。