Brachytherapy

**Definition:** A collective term for interstitial, intracavity, and surface radiotherapy. It uses small sealed or partly-sealed sources that may be placed on or near the body surface or within a natural body cavity or implanted directly into the tissues.

**Tree numbers:** - E02.815.150

**Synonyms:** - Brachytherapy, Radioisotope - Radioisotope Brachytherapy - Curietherapy