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Updated: Aug 18, 2026

Teratoma Generation in the Testis Capsule
Published on: November 7, 2011
Testicular mixed germ cell tumor with polyembryoma component in brothers
Sevgi Bakaris1, Sefa Resim, Nurdan Tunali
1Department of Pathology, Kahramanmaras Sutcuimam University Medical School, 46050 Kahramanmaras, Turkey. sevgiba@superonline.com
Abstract:
We report the case of a 17-year-old male with a testicular tumor and high serum levels of alpha-fetoprotein. The patient was treated with surgery followed by combination chemotherapy with bleomycin, etoposide, and cisplatin. Histologic examination showed features of a mixed germ cell tumor composed of mature teratoma, immature teratoma, embryonal carcinoma, yolk sac tumor, and polyembryoma. He is currently well, and his serum levels of alpha-fetoprotein have been normal more than 5 months after treatment. His brother, aged 17 years at the time, had a similar tumor removed from the right testicle 5 years previously.
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