肾上腺囊肿的CT和MRI表现  

CT and MRI findings of adrenal cyst

作　　者：王东烨[1] 罗嘉玲[1] 吴卓[1] 李勇[1] 梁碧玲[1] 

机构地区：[1]中山大学孙逸仙纪念医院放射科,广州510120

出　　处：《影像诊断与介入放射学》2011年第2期95-97,共3页Diagnostic Imaging & Interventional Radiology

摘　　要：目的探讨肾上腺囊肿的CT、MRI表现,以提高诊断的准确性。方法回顾性分析手术病理证实的10例肾上腺囊肿的CT、MRI表现。结果 10例肾上腺囊肿,6例行CT检查:囊肿壁薄、均匀,1例囊壁有钙化,1例囊内可见分隔,分隔上见点状钙化灶。平扫囊内密度均匀,CT值约为15 HU～30HU,增强扫描囊内均未见强化,1例囊壁轻度强化,5例囊壁及分隔均未见强化。4例行MRI检查:囊内均呈长T_1、长T_2信号,囊壁呈长T_1、略长T_2信号,增强扫描囊内和囊壁均未见明显强化。结论肾上腺囊肿的CT、MRI表现具有特征性,有助于临床明确诊断。Objective To evaluate CT and MRI findings of the adrenal cyst in order to improve diagnostic accuracy. Methods The CT or MRI studies of 10 histologically-proven adrenal cysts were retrospectively analyzed. Results CT was performed in 6 cases and showed smooth thin cyst wall （6）, mural calcification （1）, septation with punctuate calcification （1）. The CT densities of cyst fluid were 15-30 Hounsfield units without contrast enhancement. The wall of 1 cyst enhanced slightly whereas the remaining 5 did not enhance with intravenous contrast. All 4 cysts on MRI were T1 hypointense and T2 hyperintense without contrast enhancement. Conclusion CT and MRI findings of adrenal cysts are characteristic and conducive to diagnosis.

关 键 词：肾上腺 囊肿 体层摄影术 X线计算机 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R816.7[医药卫生—诊断学] R586[医药卫生—临床医学]