CancerHelp UK: Orchidectomy - An orchidectomy (sometimes called orchiectomy) is done to slow down the growth of prostate cancer. It is an operation to remove your testicles (testes).
The TCRC Orchiectomy Page - This page contains a description of the orchiectomy, the initial surgery used in the treatment of testicular cancer.
Bilateral Orchiectomy Procedure Slides - Photos with explanatory text from a bilateral orchiectomy. Description of advantages of orchiectomy over vasectomy.