肾上腺罕见间质肿瘤的CT表现

目的　分析 7例罕见肾上腺间质肿瘤的CT表现。方法　对 7例经手术和病理证实的肾上腺间质肿瘤的CT表现进行回顾性分析 ,其中肾上腺囊肿、肾上腺脂肪瘤各 2例 ,肾上腺神经纤维瘤、神经鞘瘤及间叶瘤各 1例。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 ;间叶瘤为较大的等密度肿块 ,增强后呈轻～中度强化。结论　肾上腺囊肿和脂肪瘤CT可明确诊断 ;神经纤维瘤、神经鞘瘤及间叶瘤CT特征不明显 ,较难或不能与腺瘤和嗜铬细胞瘤鉴别 ,确诊需依赖组织学检查

CT Findings of Rare Adrenal Interstitial Tissue Tumors

Objective To analysis the CT features in 7cases of rare adrenal interstitial tissue tumors.Methods 7 cases of rare adrenal interstitial tissue tumors were verified with operation and histology.2 cases were cyst and 2 were lipoma,neurofibroma,neurilemoma and mesenchymoma was 1 case,respctively.Results Adrenal cyst and lipoma appered the density of water and fat.neurofibroma and neuriemoma were slightly low density mass,without enhancement.There were cystic lesion in neurilemoma.Mesenchymoma had slight or moderate enhancement.Conclusion It is difficult or impossible to distinguish nuerofibroma,neurilemoma or mesenchymoma from non-function adenoma or pheochromocytoma except adrenal cyst and lipoma.