| 王英伟,张兴华,肖越勇,于国.囊性肾瘤的CT、MRI表现[J].中国医学影像技术,2009,25(7):1242~1244 |
| 囊性肾瘤的CT、MRI表现 |
| CT and MRI findings of cystic nephroma |
| 投稿时间：2009-02-11 修订日期：2009-03-09 |
| DOI： |
| 中文关键词: 肾肿瘤 多房囊性 体层摄影术,X线计算机 磁共振成像 |
| 英文关键词:Renal neoplasms Multilocular cytic Tomography, X-ray computed Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨囊性肾瘤的CT、MR的影像学特征。方法 回顾性分析8例经手术切除病理证实的囊性肾瘤的CT和MR资料。结果 8例囊性肾瘤均为单侧单发,直径2.92~7.81 cm。CT或MRI扫描病灶显示为边界清楚的多房囊性病变,囊腔间无交通,囊内分隔光整,增强呈渐进性轻至中度强化。分隔在冠状位T2图像显示良好,呈短T2信号。4例MR扫描囊内信号不均匀。1例CT扫描可见点状钙化。组织病理学显示所有病例的囊壁和分隔由纤维结缔组织构成,衬覆单层或多层立方上皮。4例见含铁血黄素沉积。结论 CT和MR能准确显示囊性肾瘤的形态学特征,MR更能反映病变的病理基础,可为临床诊断提供准确的参考信息。 |
| 英文摘要: |
| Objective To explore the CT and MR features of cystic nephroma. Methods CT and MRI findings of 8 patients with cystic nephroma comfirmed surgically and pathologically were analyzed retrospectively. Results In all 8 patients, cystic nephromas were unilateral and solitary, and diameter of lesions was 2.92—7.81 cm. The CT and MR scans showed multilocular cystic lesion with clear border. These locules did not communicate with each other. The septa were intact and smooth, and showed slight to moderate and gradual enhancement. The interlocular septa were demonstrated clearly on coronal T2WI, and showed hypointensity signals. The intracapsular liquids were heterogenous in 4 patients on MR images. The CT scanning showed a patchy calcification in 1 case. Histopathology proved that the capsule and septa of the lesions were lined by cuboidal or flattened epitheial cells, of which hemosiderin depositions were presented in 4 patients. Conclusion CT and MR are valuable in the diagnosis of cystic nephroma, and MRI can reflect the pathology of cystic nephroma more clearly, and supply the accurate reference information for diagnosis. |
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