肾上腺间质组织肿瘤的CT和MRI表现

目的 分析５例罕见的肾上腺质组织肿瘤的ＣＴ和ＭＲＩ表现。方法 对５例经手术和病理证实的肾上腺间质组织肿瘤的ＣＴ和ＭＲＩ表现进行回顾性分析。其中右肾上腺神经纤维瘤２例，右肾上腺神经鞘瘤１例，左肾上腺纤维脂肪瘤１例，双侧肾上腺脂肪瘤１例。结果１例神经纤维瘤和１例神经鞘瘤有大的囊空区，１例神经纤维瘤显示多发性钙化和片状的增强。１例纤维脂肪瘤为Ｔ１ＷＩ低信号，Ｔ２ＷＩ稍高信号，注射钆剂后明显增强。１例双

Manifestation of CT and MRI in patients with adrenal interstitial tissue tumors

Objective To analyze the CT and MRI findings in five patients with adrenal interstitial tissue tumors. Methods All cases were verified with operation and histology. Two cases were neurofibromas; one was neurilemoma; all arising from the right adrenal. There was one left adrenal fibrolipoma; and the remaining one had bilateral adrenals lipoma. Results There was a large cystic degenerative area in a neurofibroma and a neurilemoma. One neurofibroma showed multiple calcification and patchy enhancement. One fibrolipoma exhibited low signal intensity on T 1 weighted image and slightly high signal intensity on T 2 weighted image, the signal intensity of the tumor increased obviously after Gd DTPA administration. The case with bilateral adrenal lipomas showed homogeneous fatty masses with a thin and smooth capsule. Conclusions It is impossible to distinguish these tumors, except lipoma, from common adrenal masses, such as adenoma or pheochromocytoma.