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Management and outcome of bilateral testicular germ cell tumors: a 25-year single center experience



Management and outcome of bilateral testicular germ cell tumors: a 25-year single center experience



International Journal of Urology 15(9): 821-826



To analyze risk factors, management, histology, and outcome of bilateral testicular germ cell tumors (TGCT) based on a 25-year single center experience. Out of 612 patients treated for TGCT between 1982 and 2007, 17 (3%) were found to have bilateral disease. Data of these patients were reviewed and analyzed. Eleven patients (65%) were identified with metachronous and 6 (35%) with synchronous bilateral TGCT. One patient had a cryptorchism in childhood. Patients with metachronous bilateral disease presented at lower stages than those with synchronous bilateral disease (stage I: 82% vs 33%, P = 0.02). In metachronous bilateral TGCT, the interval between the tumors ranged from 4 months to 25 years with a median of 47 months. The risk of developing a TGCT in the contralateral testicle was 26-fold higher than the a-priori risk for a healthy individual to develop TGCT. Overall, 74% of the bilateral tumors were seminomas and >50% of the patients had similar histology on both sides. After a median follow up of 121 months for patients with synchronous and 95 months for patients with metachronous bilateral TGCT, all patients were alive with no evidence of disease. Most bilateral TGCT develop metachronously and are seminomas. Although patients with synchronous bilateral disease present at higher stages, both synchronous and metachronous bilateral TGCT carry a similar, excellent prognosis. Patients with unilateral TGCT require careful long-term monitoring of the remaining testicle due to a 26-fold increased risk of contralateral disease and a potentially long risk interval of up to 25 years.

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Accession: 054237492

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PMID: 18657202

DOI: 10.1111/j.1442-2042.2008.02107.x


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