Results Adrenal cyst and lipoma appered the density of water and fat.neurofibroma and neuriemoma were slightly low density mass,without enhancement.

• 结果肾上腺囊肿及脂肪瘤分别为水和脂肪密度,CT特征明显;神经纤维瘤及神经鞘瘤为较低密度肿块,增强后不强化,神经鞘瘤密度不均匀,可见囊变;