Objective To investigate the CT features of renal oncocytoma(RO).Methods Retrospective analyse 31 cases of patients who were surgically and pathologically confirmed RO and received the preoperative CT scan and enhanced scan of the kidney.Observed characteristics of each lesion,including the location,capsule,scar,strengthening,etc.Results 31 RO lesions,12 in the left kidney and 19 in the right kidney,the maximum diameter of the tumor was 1.6cm～9.1cm,with an average of(3.7±1.9)cm.23(23/31)showed exogenous growth,22(22/31)showed fibrous capsule,17(17/31)showed fibrous scar,and 2(2/31)showed calcification.16(16/31)showed spoke-like enhancement,23(23/31)showed moderate enhancement above cortical phase,and 30(30/31)tumors showed uneven enhancement of cortical phase.20(20/31)parenchymal and delayed tumor enhancements were uniform,and the degree of enhancement was significantly lower than that of the same layer of kidney.Conclusion CT findings of renal oncocytoma have certain characteristics,and the scar,capsule and enhancement mode of the tumor provide the basis for diagnosis of oncocytoma.
万方数据
维普
