Case Report  |   January 2018
Nephroblastoma Arising in a Primary Testicular Teratoma in a Nonatrophic Testis of a 50-Year-Old Man
Author Notes
  • From the University of Pittsburgh School of Medicine in Philadelphia (Student Doctor Kromka); the Department of Urology at the University of Pittsburgh Medical Center Health System in Pennsylvania (Drs Turner, Elisco, and Hale); and the Department of Pathology at the Oregon Health and Science University in Portland (Dr Turner). 
  • Financial Disclosures: None reported. 
  • Support: None reported. 
Article Information
Endocrinology / Urological Disorders
Case Report   |   January 2018
Nephroblastoma Arising in a Primary Testicular Teratoma in a Nonatrophic Testis of a 50-Year-Old Man
The Journal of the American Osteopathic Association, January 2018, Vol. 118, 45-49. doi:10.7556/jaoa.2018.008
The Journal of the American Osteopathic Association, January 2018, Vol. 118, 45-49. doi:10.7556/jaoa.2018.008
Abstract

Extrarenal nephroblastoma is an extremely rare tumor thought to be related to teratoid tumors of germ cell origin. Because few cases have been reported, no standard method for categorizing and managing these tumors exists. To our knowledge, there have only been 3 adult cases of nephroblastoma arising in a germ cell tumor of testicular origin in a nonatrophic testis, all in men aged 19 to 22 years and with aggressive clinical courses. We report a case of nephroblastoma in a nonatrophic testis, with nephroblastoma being the only non–germ cell component, in an older patient and with a more indolent clinical course that was responsive to localized treatment.

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