【摘要】 目的 观察CT鉴别诊断乳头状肾细胞癌(PRCC)与肾转移癌(RM)的价值。方法 回顾性分析49例经病理证实的PRCC及51例经病理或临床随访证实的RM患者的腹部CT资料，对比PRCC与RM的CT表现，评估CT鉴别诊断二者的价值。结果 于49例PRCC共检出49个病灶(PRCC组，n=49),51例RM共检出78个病灶(RM组，n=78)。CT所示病灶成分、边界、包膜、平扫与肾实质密度差异，以及有无集合系统受累、侵犯和肾脏轮廓改变的组间差异均有统计学意义(P均<0.05)。RPCC组病灶最大径大于RM组，而增强后病灶CT值及强化程度均小于RM组(P均<0.05)。结论 CT对于鉴别诊断PRCC与RM具有一定价值。更多还原

【Abstract】 Objective To explore the value of CT for differential diagnosis of papillary renal cell carcinoma(PRCC) and renal metastases(RM). Methods Abdominal CT data of 49 patients with pathologically confirmed PRCC and 51 patients with RM confirmed by pathology or clinical follow-up were retrospectively analyzed, and CT manifestations of PRCC and RM were compared. Results A total of 49 lesions were detected in 49 cases of PRCC(PRCC group, n=49), while 78 lesions were detected in 51 cases of RM(RM group, n=78). Significant differences of lesion’s components, boundary, capsule, density relative to renal parenchyma on plain CT, as well as involvement of kidney, collecting system and kidney contour change were found between groups(all P<0.05). The maximum diameter of lesion in RPCC group was larger than that in RM group, while enhanced CT value and enhancement degree in RPCC group were all lower than those in RM group(all P<0.05). Conclusion CT had certain value for differential diagnosis of PRCC and RM.更多还原