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small rcc
    Objective To study the diagnostic value of ultrasonography (US) in earlier detection of asymotomatic renal cell carcinoma (RCC)and small RCC(≤3 cm).
    目的评价超声体检在早期发现无症状性肾癌(RCC)和小肾癌(SRCC、直径≤3cm)中的临床诊断价值。
    Therefore, the acquisition of a cortical phase scan should be part of the routine helical CT protocal of small RCC.
    皮质期扫描应纳入小肾癌CT检查的常规步骤
    Methods Twenty eight patients with small RCC confirmed by operation and pathology were examined with ultrasonography.
    方法 对 2 8例经手术和病理证实的小肾癌进行超声检查。
    Results Of all these 79 cases, tumor echogenicity was relatively homogeneous in small RCC(≤3 cm), while mixed echoes or echoes showing calcification were uncommon in these patients.
    结果 79例小肾癌(≤3 cm)瘤体内回声相对比较均匀,表现为混合性回声、或伴有钙化形成者较少。
    The small RCC prognosis was extremely good after operation and no metastasis was either in group A and B.All the 26 patients were still alive and the mean survival time wes 5.6 years ranging from 1-9 years.
    小肾癌术后预后好,无1例转移,全部生存至今,为1~9年,平均5.2年。
    Results On most sonograms of RCC,tumors were with clear b oundaries and relatively homogeneous echoes,Echogenicity night be hypoechoic or medium echoic,and small RCC (≤3 cm) may be hyperechoic or medium-hyperechoic.
    结果肾细胞癌超声表现多为边界较清的均匀低回声及等回声团块,小肾癌(≤3cm)可表现为高回声或等高回声。
    Conclusion:The multiphasic enhancement of helical CT scan is more superior than conventional CT in diagnosis of small RCC. In most cases ,tumor enhancement was strong in cortical or artery phase, but weak in parenchymal phase and in pyelographic phase.
    结论:螺旋CT多期增强扫描在小肾癌的诊断中较常规CT有明显优越性,多数小肾癌动脉期强化明显,实质期强化迅速减退,肾盂期呈更低密度,呈“快进快退”表现,这一强化形式有定性意义;
 

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