The imaging manifestations of adrenal pheochromocytoma are: 1. sonogram, the mass is located in the upper medial side of the suprarenal level, the margin is clear and sharp in benign, irregular and unsharp in malignant, moderate or hypoechoic, uniform internal echogenicity, single or multiple cystic anechoic transmissive areas, the margin of the transmissive area is regular in benign, the margin of the transmissive area is irregular in malignant; 2. CT manifestation, the tumor is located above the suprarenal level, the vena cava The tumor is hypointense, the texture is not homogeneous, the edge is clear, the tumor has obvious strengthening disease in most of the enhanced scans, the cystic area is common, the edge of the cystic area is clear, the malignant tumor is irregular, the edge is not smooth, the necrotic area is also irregular; 3, magnetic resonance performance, T1W1 tumor is low signal, the signal is not homogeneous, the cystic area becomes more low signal, if the tumor has bleeding, it can be high signal. The tumor signal is obviously bright white high signal, and the morphology of malignant tumor and intra-tumor necrosis area are irregular.