Brachytherapy and cyber knife

[sarah]

Hello,
In what cases are Brachytherapy (internal radiation) and cyber knife used? I have only heard of cyber knife in connection with the brain but is it ever used elsewhere? And I don't often here about brachytherapy although it seems more direct for a solid tumor. Can anyone explain these therapies use to me, thanks.
Sarah

[Ramsay_Bolton]

Cyberknife can be used anwhere in the body. There are restraints in the number of lesions and the size of each tumour. Extracranial lesions are normally limited to 3.

[sarah]

thank you for replying so quickly.
Sarah