In politics, lustration refers to the purge of government officials once affiliated with the Communist system in Central and Eastern Europe. Various forms of lustration were employed in post-communist Europe.
A gastrectomy is a partial or total surgical removal of the stomach.
A radical prostatectomy is an operation to remove the prostate gland and some of the tissue around it. It is done to remove prostate cancer. This operation may be done by open surgery. Or it may be done by laparoscopic surgery through small incisions.