Intratestikuläre Metastasierung eines Nierenzellkarzinoms

Abstract

We report on a 66-year-old man after nephrectomy of the right kidney because of renal cell carcinoma. One year after diagnosis, an osseous metastasis of the right femur occurred and was resected. The following investigations, including positron emission tomography/computed tomography, showed no relapse. Three and a half years after diagnosis, the patient developed a testicular tumor of the right hemiscrotum, which was treated by testicular ablation. The histological investigation showed a testicular metastasis of renal cancer. This case represents one of the unusual forms of metastatic invasion of renal cell cancer.

Atypical presentations and rare metastatic sites of renal cell carcinoma: a review of case reports

“…With regard to metastatic testicular involvement, the incidence of secondary testicular tumors ranges from 0.3% to 3.6% with the most frequent primary site being the prostate [82]. Intrascrotal metastasis arising from RCC has also been reported [83].…”