MULTILOCULAR CYSTIC RENAL CELL CARCINOMA AND CYSTIC DEGENERATION OF RENAL CELL CARCINOMA: A COMPARISON OF CT VALUE AND BOSNIAK CLASSIFICATION
Objective To compare the difference in CT value and BOSNIAK classicification between multicular cystic renal cell carcinoma (MCRCC) and cystic degeneration of renal cell carcinoma (CDRCC) as well as improve the accuracy of preoperative differential diagnosis of these two kinds of lesions.Methods Between 2008-2013,28 cases of cystic malignant lesion of kidney (CMLK) were comfirmed in our hospital by operative pathology,of which,MCRCC were diagnosed in 11 cases,and CDRCC in 17.Difference of CT value and BOSNIAK grade in each enhancement period of the two lesions was analyzed.Results The difference in CT value of cortical phase and parenchymal phase between MCRCC and CDRCC was significant (t =3.77,2.679;P <0.05),and the difference of that of excretion phase was not significant (P>0.05).In MCRCC,BOSNIAK Ⅲ was found in nine cases (82%),Ⅱ F in two (18%),and in CDRCC,BOSNIAK Ⅲ was found in one case (6%) and Ⅳ in 16 (94%).Conclusion BOSNIAK classification and three phase enhanced CT value are helpful to distinguish multicular cystic renal cell carcinoma and cystic degeneration of renal cell carcinoma more accurately before operation.
kidney neoplasmstomography, X ray computeddiagnosis, differential