Testicular cancer is defined as cancer that forms in tissues of the testis (one of two egg-shaped glands inside the scrotum that make sperm and male hormones). It usually occurs in young to middle-aged men. The two main types of testicular cancer are:
1) Seminomas (cancers that grow slowly and are sensitive to radiation therapy) 2) Nonseminomas (different cell types that grow more quickly than seminomas).
Testicular cancer has the highest cure rate of any cancer, up to 90%. Not all lumps on testes are tumors, some are Epididymal cysts, Hydatidd of Morgagni, etc and are not cancerous, but should be checked by a physician immediately.
Incidence
There are an estimated 8,000 new cases and 380 deaths from testicular cancer in the U.S. in 2008. It is more common among men between the ages of 15 and 34. Each year, about 8,000 to 9,000 men are diagnosed with testicular cancer in the U.S. 1 in 250 men will be at risk of testicular cancer in his lifetime.