Résumé
ObJective To evaluate the multi-slice spiral CT (MSCT) in the diagnosis of early small renal cell carcinoma (RCC). Methods 32 cases of small RCC proved by pathology were retrospectively analyzed. The relationship of imaging features MSCT with pathology was compared. Results Of the 32 RCC in this study, 19 patients were with low density, 6 medium density, and 5 minimal high density. In 24 patients, the lesion were seen as a mixed enhancement pattern, 8 were with the homogeneous enhancement pattern.In cortical phase, clear cell RCC (25/32) tended to be marked enhancement or mixed enhancement pattern; 2 chromophobe lesions and 2 angsarcomakoid renal cell carcinoma (2/32, 2/32 respectively) tended to enhance moderately, papillary lesions (3/32) were mostly hypovascular and homogeneous enhancement pattern. The detection and characterization as well as accuracy of staging in 32 small RCC on MSCT were 100%, 93.75%, and 84.38%, respectively. Conclusion Muhiphase enhanced MSCT scan was a reliable technique in the dectection and clinical predicting subtype of small RCC.