Objective:

To assess the value of contrast-enhanced ultrasonography (CEUS) in evaluating cystic renal carcinoma compared with contrast-enhanced computed tomography (CECT).

Methods:

The imaging data of 102 cystic renal carcinoma patients from July 2005 to April 2017 who received ultrasound

CEUS and CECT diagnosis were analyzed. Fisher's exact test was used to analyze the differences in the diagnosis data.

Results:

All patients were proved by operation and pathology

including 92 cases of c

lear cell renal carcinoma

6 cases of chromophobe renal cell carcinoma

4 cases of papillary renal cell carcinoma. The diagnostic accuracy of CEUS for cystic renal carcinoma was 96.08% (98/102) and 87.25% (89/102) of CECT. Bosniak classification of CEUS: grade Ⅱ in 2 cases

grade ⅡF in 2 cases

grade Ⅲ in 18 cases

grade Ⅳ in 80 cases. Bosniak classification of CECT: grade Ⅱ in 3 cases

grade ⅡF in 5 cases

grade Ⅲ in 17 cases

grade Ⅳ in 75 cases. There was no significant difference (

P

=0.710)．

Conclusion:

CEUS may play a similar role to CECT in the diagnosis of cystic renal carcinoma based on Bosniak classification. CEUS is helpful in the diagnosis of cystic renal carcinoma．