Detection and follow-up of a renal cell carcinoma in a transplant kidney by CEUS

Purpose: CEUS is an important method for the diagnosis of RCC (renal cell carcinoma) in native kidneys. Tumors in transplant kidneys rarely occur due to the reduced life expectancy (both of patient and transplant). We describe the change in perfusion characteristics, monitored by CEUS, over a period of two and a half years. Material and methods: An 81-year old asymptomatic patient had undergone renal transplantation 22 years ago. A nodule in the transplant kidney with a diameter of 17 mm was first diagnosed 6/2010. A follow-up in 1/12 showed progression in size (33 × 22 mm) and a change in CEUS characterization.…