Renal cell carcinoma in kidney transplant recipients: descriptive analysis and overview of a major German transplant center.

Aim: Elevated risk of malignancy-related death after renal transplantation is reported and renal malignancy was ranked as the third most frequent site of malignancy-related death. However, there is a lack of data characterizing renal cell carcinoma associated with end-stage renal disease and kidney transplantation. Patients & methods: We retrospectively identified 5250 patients who underwent kidney transplantation at the Hannover Medical School since 1970. Results: 124 patients with renal cell carcinoma (incidence 2.36%) were identified. Among all patients, metastatic recurrence was noted in 4.8%. In multivariate analysis, tumor stage and hemoglobin were identified as independent prognostic markers of OS, while tumor grading was predictive for disease recurrence. Conclusion: Apart from showing the prognostic value of tumor staging and hemoglobin, our data suggest that a risk adapted approach for early transplantation is feasible.