What should you know about surface mould brachytherapy?

A mould is shaped to fit the treatment area and contains channels for the radiation source. During treatment, the applicator is positioned carefully so the dose is concentrated near the target while nearby tissue is considered in the plan. An afterloader may move the source into the applicator and remove it afterwards. The mould remains outside the body, unlike some implanted forms of brachytherapy. The method may be considered for selected superficial or accessible cancers, depending on location, depth and previous treatment.

The team may take measurements, photographs or imaging to design the mould. Wear clothing that allows easy access and tell the team about skin irritation, allergies, pregnancy possibility or difficulty lying still. You may need to remain in one position while the applicator is used. Skin in the treated area can become red, tender, dry or irritated; report changes early so supportive care can be offered. Follow instructions about washing, creams and sun exposure.

Call the treatment team promptly for rapidly worsening pain, blistering, open skin, heavy bleeding, fever, or swelling that affects breathing, swallowing or movement. Seek emergency care for severe allergic symptoms, uncontrolled bleeding or sudden breathing difficulty. Keep the applicator and treated skin protected as instructed.

Why is a surface mould suitable for my treatment area? How will the mould be made and positioned? Is the radiation source removed after each session? How should I care for the skin? What changes should I report between sessions?