Types of Radiotherapy

Radiotherapy can be given in two ways:

External (beam) radiotherapy, where radiotherapy is given from outside the body using X-rays, electrons or, in rare cases, other particles such as protons.

Internal radiotherapy, where radiotherapy is given from within the body, either by drinking a liquid that is absorbed by the cancerous cells, by injection or by putting radioactive material into or close to the tumour.

Brachytherapy is a specific type of internal radiotherapy in which the radioactive material is placed directly into or near a tumour using a special needle, wire or catheter.