Analysis of CT and MRI findings and rare signs of chromophobe cell renal carcinoma / 肿瘤研究与临床

ABSTRACT

Objective To analyze the CT and MRI performances of chromophobe cell renal carcinoma,to improve the understanding of the disease.Methods The CT and MRI performances of 16 patients with chromophobe cell renal carcinoma confirmed by post-operation pathology were analyzed retrospectively.Results Among 13 cases examined by CT,8 cases had homogeneous lesion including the homogeneous lesions density of 5 cases higher than that of normal renal parenchyma,and the other 5 cases had inhomogeneous density.After enhanced scan,the uneven essence ingredients were markedly enhanced in homogeneous density and inhomogeneous density cases,and the enhancement degree in arterial phase was lower than that of the renal cortex and higher than that of the renal medulla.Among 8 cases checked by MRI,2 cases had signal homogeneity with long T1 weighted imaging and long T2 weighted imaging signal,of which 5 cases appeared high signal in T1 weighted imaging flat lesions.The enhancement mode were similar with CT.In 5 patients examined by CT and MRI at the same time,their density,signal and the pattern strengthening were similar.Conclusions Chromophobe cell renal carcinoma is a rare malignant renal cell carcinoma,and CT and MRI can reflect the composition and hemodynamic changes.When homogeneity and high density or T1WI appeared high signal,disease was large and necrosis was less,and strengthening belt was appeared in lesions,it is value on diagnosis of chromophobe cell renal carcinoma.