Making a mask

Radiotherapy masks

Some patients need a mask to help them keep very still during treatment. Masks are usually used for head and neck tumours but can be used for others.

If you need a mask, you will visit the mould room to have your mask made at the same appointment as your CT planning scan.

Masks are made by using a warm soft plastic that we lay on your body. It will feel like having a warm flannel placed on you.

As the plastic cools it becomes more rigid and forms a mould that fits to your individual contours.