The 17-year-old cancer victim, known only as X, appealed against a NSW Supreme Court order that staff at the Sydney Children's Hospital should be allowed to give him the treatment.

He told his doctors he would rip the IV out of his arm if forced to have the transfusion, which he believes is akin to being raped.

X is suffering from Hodgkin's disease and his doctors believe he has an 80 per cent chance of dying from anaemia if he does not receive the treatment.