多房囊性肾细胞癌的影像学特征与临床分析

Multilocular cystic renal cell carcinoma: imaging and clinical correlation

多房囊性肾细胞癌(MCRCC)是肾细胞癌的一种亚型。其临床症状轻微,预后良好,肾脏局部切除即可治愈肿瘤。如果能在术前准确预测MCRCC,将有利于预后判断及临床管理。大多数MCRCC具有典型的影像特征,有利于术前诊断。MCRCC影像表现为多房囊性肿物,囊内见强化的不规则增厚的分隔,无囊内强化的实性结节,Bosniak分级多为Ⅲ级,与其他肾脏囊性肿物的影像表现不同。就MCRCC的临床、病理、影像学表现进行综述,评估影像学检查在MCRCC的术前评估及临床管理中的作用。

Multilocular cystic renal cell carcinoma （MCRCC） is a subtype of clear cell renal cell carcinoma and has mild clinical symptoms and a favorable prognosis. Accordingly, nephron-sparing surgery is recommended as a therapeutic strategy. If histologic subtype of MCRCC can be predicted preoperatively with an acceptable level of accuracy, it may be important in predicting prognosis and make clinical management. Most MCRCCs show characteristic cross-sectional imaging findings and permit accurate diagnosis before the treatment. Cross-sectional imaging of MCRCC reveals a well-defined multilocular cystic mass with irregularly enhanced thickened septa and without enhanced intracystic solid nodule. It is often classified as Bosniak classification m, which is significantly different from that of other renal cystic masses. The clinical, pathologic, and radiologic features of MCRCC were discussed and illustrated in this article. The role of the imaging preoperative evaluation for MCRCC, and management implications were emphasized.