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Simultaneous bilateral testicular metastases from renal clear cell carcinoma: A case report and review of the literature.

Moriyama, Shingo; Takeshita, Hideki; Adachi, Akiko; Arai, Yoshiaki; Higuchi, Saori; Tokairin, Takuo; Chiba, Koji; Nakagawa, Koji; Noro, Akira.
Oncol Lett; 7(4): 1273-1275, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24944706
Metastasis from renal cell carcinoma (RCC) to the testis is rare. This case report presented an extremely rare case of simultaneous bilateral testicular metastases from RCC in a 65-year-old man who had experienced indolent scrotal enlargement over a period of several months. Scrotal ultrasonography showed 4.0- and 2.0-cm-sized masses in the left and right testes, respectively. Contrast-enhanced computed tomography identified multiple tumors in the kidneys, the pancreas and the left adrenal gland. Left orchiectomy and pathological examination were performed and indicated testicular metastasis from clear cell RCC. The patient underwent complete surgical resection of all residual lesions. Postoperative follow-up examination without adjuvant therapy identified no recurrence over 11 months. This study also reviewed existing literature and determined that retrograde venous spread from the primary kidney tumor to the testis may be an important pathway for testicular metastasis from RCC. In conclusion, RCC can result in testicular metastases not only unilaterally, but also bilaterally, as was observed in the present case.