Changes

* Active surveillance refers to observation and regular monitoring without invasive treatment. In the context of prostate disease this usually comprises regular PSA blood tests and prostate biopsies. Active surveillance is often used when an early stage, slow-growing prostate cancer is suspected. However, watchful waiting may also be suggested when the risks of surgery, radiation therapy, or hormonal therapy outweigh the possible benefits.

Source: [http://www.cancer.gov/ncicancerbulletin/041911/page2 ncicancerbulletin] & [http://www.jurology.com/article/S0022-5347%2805%2962425-1/abstract Urology-Journal]