Testicular Cancer and Germ Cell Tumors

Testicular Cancer and Germ Cell Tumors is a topic covered in the Washington Manual of Medical Therapeutics.

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Epidemiology and Etiology

Testicular cancers are relatively rare tumors with about 9000 cases diagnosed annually in the United States. However, they are the most common tumors diagnosed in men aged 15–35. Nonseminomatous tumors are more common in younger men, whereas seminomas are more common after the age of 30. Incidence is higher in Caucasians than in patients of other ethnicities. Other risk factors include cryptorchidism and Klinefelter syndrome.

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