Metastatic neoplasms of testicular adnexa are extremely rare, particularly the ones spreading from renal cell carcinoma. The authors refer to a case of metachronous metastasis spread from kidney to funicle and para-epididymal tissue, in a 73-year-old male, who had undergone left nephrectomy for adenocarcinoma (seven months before). They review the statistics reported in literature and discuss the possible physiopathology of the way of spreading (in this case left varicocele was associated). Ultrasonography diagnosis of left testis tumour was confirmed by histological test after inguinal orchifunicolectomy.
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