Prostate cancer is a form of cancer that develops in the prostate, a gland in the male reproductive system. Most prostate cancers are slow growing; however, there are cases of aggressive prostate cancers. The cancer cells may metastasize (spread) from the prostate to other parts of the body, particularly the bones and lymph nodes. Prostate cancer may cause pain, difficulty in urinating, problems during sexual intercourse, or erectile dysfunction. Other symptoms can potentially develop during later stages of the disease.

Rates of detection of prostate cancers vary widely across the world, with South and East Asia detecting less frequently than in Europe, and especially the United States. Prostate cancer tends to develop in men over the age of fifty and although it is one of the most prevalent types of cancer in men, many never have symptoms, undergo no therapy, and eventually die of other causes.

http://en.wikipedia.org/wiki/Prostate_cancer

Marberger M

A small international group of very highly respected experts has just published an important review of the current evidence surrounding the application of a number of the new and/or evolving treatments available for management of localized prostate cancer, with an emphasis on the potential of focal therapy.

Marberger et al. have addressed the available data related to the clinical use of such techniques as high-intensity focused ultrasound (HIFU) in focal therapy and in total prostate ablation, cryotherapy as a focal treatment option, and the even newer technique known as vascular-targeted photodynamic therapy (VTFT). They make the following key points:

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http://prostatecancerinfolink.net/2009/01/15/new-treatments-for-localized-prostate-cancer-an-expert-overview/