An Uncommon Presentation of a Metachronous Testicular Primary Nonseminoma and Seminoma Separated by Two Decades and a Testicular Cancer Literature Review

Conclusion: A review of our case presents several unique factors. The above varying literature has shown our patient to have met the odds of a contralateral testicular primary development in that he had a nonseminomatous primary, followed by a second testicular primary seminoma. Our patient exceeded the 15-year cumulative risk of contralateral metachronous testicular cancer of 1.9% versus the seemingly contradictory 5.2% cumulative risk 25 years after the first testicular germ cell tumor. With his second primary (seminoma), he presented with the common retroperitoneal landing zone site, though with an uncommon involvement of the gastrointestinal tract (#x3c;1%) and rare incidence of involving the duodenum.Case Rep Oncol 2017;10:832 –839
Source: Case Reports in Oncology - Category: Cancer & Oncology Source Type: research