Ablation

Ablation is any medical procedure deliberately used to remove or destroy tissue. Surgical ablation is the most common, but ablation can also be accomplished with abrasion, laser light, chemicals, freezing or electricity. It is usually used to treat blemishes and other minor defects of the skin, although it can be used for some internal tissues, such as to remove arterial plaque. 
Ablation in medicine at Wikipedia
Category:Medical procedures