Different Characteristics Of Blood Supply Of Renal Space-occupying Lesions In The CT Improved Performance

Objective:Discussing the characteristics of the different blood supply of kidney cancer, renal parenchyma invasive urothelial carcinoma, renal cysts in the CT improved performance, analyze its value in clinical diagnosis and differential diagnosis.Methods:Retrospectively analyzed in June 2014 to December 2015,71 cases of postoperative pathology confirmed for renal clear cell carcinoma, and renal chromophobe cell carcinoma, renal collecting duct carcinoma, renal parenchyma invasive urothelial carcinoma and renal cyst patients clinical data, CT examination results.Result:Rich blood supply of tumor in 39 : 39 cases of renal clear cell carcinoma patients, tumor between 3.0-7.0 cm in diameter, the average diameter of 4.7 cm. Scan when the tumor is round or ovoid, such as density, small tumors are psuedocapsule, larger tumor shape is irregular,can protrude the surface of the kidney. Because of its rich blood supply,the enhancement scan, the tumor improved speed, in the renal cortex period quickly appear obvious uneven reinforcement, renal parenchyma phase the tumor density dropped faster, show the "fast forward quickly".Relative renal clear cell carcinoma, 32 cases of lack of blood supply from the tumor, 4 cases of renal chromophobe cell carcinoma patients, tumor between 5.8-7.8 cm in diameter, average diameter of 6.5 cm. Bulging tumor boundary less clear, to kidney, irregular round, the density is similar to the surrounding normal renal parenchyma. Uneven enhancement, lesions in strengthening, strengthening was significantly lower than that of renal parenchyma, the cable sample, and significantly improved shadow point patch samples, but enhanced tumor boundary is clear. 4 cases of renal collecting duct carcinoma patients, tumor between4.3-5.7 cm in diameter, the average diameter of 4.9 cm. Is no clear boundary between circular neoplasm, with the surrounding renal parenchyma, involvement, cortex and medulla, dividing line is not clear,cortex and medulla, not to the surface of the kidney. Slow speed increase,strengthening, strengthening was significantly lower than the surrounding normal kidney tissues, boundary owes. 10 patients with invasive urothelial carcinoma of renal parenchyma and tumors between 3.1-5.5 cm in diameter, average diameter of 4.2 cm. Scan more visible when the tumor is in the middle of the kidney, central to the development of renal parenchyma from kidney, the hybrid mixed density with fuzzy boundaries.Enhancement, tumor improved speed slower, improved degree is lower than normal renal parenchyma, some patients can appear delayed reinforcement, show the performance of the "slow in slow out". 14 cases of patients with renal cyst tumor in diameter between 4.5-8.5 cm, the average diameter of 6.9 cm. Scan when the density is significantly lower than the density of renal parenchyma lesions, watery density shadow, and renal parenchyma boundary is clear, have a clear coated; Enhanced scan,stage renal cortex and renal parenchyma no reinforcement. Patients,including 1 pouch sample density, cystic wall thickening, sac lining is not smooth, enhanced scan, capsule wall is obviously uneven reinforcement,fluid without reinforcement.Conclusion:1. The different characteristics of blood supply from kidney cancer,renal parenchyma invasive urothelial carcinoma and renal cyst have certain differences in the enhanced CT.2. Enhanced CT in the diagnosis of kidney cancer, renal parenchyma invasive urothelial carcinoma and renal cyst has a high application value.