Abstract
To investigate present rate of a pseudocapule and cystic,hemorrhagic,debris and necrotic tissue in clear cell renal cell carcinomas(RCCs) on contrast- enhanced sonography compared with conventional gray-scale sonography. 184 patients with RCCs proved by histologic diagnosis were prospectively studied with contrast-enhanced sonography compared with conventional gray-scale imaging. The present rate of a pseudocapule and cystic,hemorrhagic,debris and necrotic tissue in RCCs was assessed on contrast- enhanced sonography compared with conventional gray-scale sonography. On conventional sonography, the presence of a pseudocapsule was detected in 63 of 184 RCCs. Sonographic contrast-enhanced imaging revealed the in 87 0f 184 RCCs presence of pseudocapsule in 107 0f 184 RCCs (P<0.05). On conventional sonography, the presence of cystic, hemorrhagic, debris and necrotic tissue were seen in 87 0f 184 RCCs. The cystic, hemorrhagic, debris and necrotic tissue were visible in 134 of 184 RCCs. Sonogrphic contrast-ehanced imaging is effective in improving the sonographic visualization of pseudocapsule and cystic, hemorrhagic, debris and necrotic tissue in RCCs. Ultrasonic diagnosis could supply more information in RCCs.
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