Watch the full interview with Sally Roberts on Daybreak. The mother from Devon has launched an appeal to prevent her son having radiotherapy treatment for cancer.
Last month she lost a hight court battle when a judge ruled her 7-year-old son Neon Roberts needs the treatment for his brain tumour.
The treatment is due to begin next week but Ms Roberts says she's worried about the long term effect it will have on his development:
A mother from Devon has launched an appeal to prevent her son from having radiotherapy for cancer.
Sally Roberts lost a hight court battle last month when a judge ruled 7-year-old Neon Roberts needs the treatment for his brain tumour. It's due to take place next week but Ms Roberts says she's worried about the long term effect it will have on his development.
A mother from Devon has lost her fight to stop her son having radiotherapy treatment for cancer. Sally Roberts is worried her son could suffer long-term harm and she wants him to have alternative treatment.
But this afternoon a High Court judge ruled Neon Roberts should have radiotherapy to treat his brain tumour.
The judge said Neon's mother has been through a terrible time and added that this is every parent's nightmare, but he added he feared her judgement had gone awry.
Jonathan Gibson reports:
A judge said 7-year-old Neon Roberts should receive radiotherapy against his mothers wishes today.
Sally Roberts said she feared that radiotherapy would cause long-term harm to her son Neon, and argued that "credible" alternative treatment was available.
Specialists treating Neon accepted that there were side-effects to radiotherapy but said that without the treatment the youngster could die within a few months.
Mr Justice Bodey, who heard evidence at a hearing in the Family Division of the High Court in London, said radiotherapy treatment could start.
A High Court judge is expected to decide if a boy with cancer can have radiotherapy, against his mother's wishes.
Sally Roberts went missing with seven year old Neon from Tiverton to stop him having surgery on his brain tumour.
He had the operation on Wednesday, after a judge's ruling. Doctors say it went well.
Ms Roberts is fighting for Neon to have alternative treatment because she is worried about side-effects.
A judge will decide tomorrow whether a 7-year-old Devon boy can have a second course of treatment for cancer against his mother's wishes.
Neon Roberts, from Tiverton, had an operation yesterday on the orders of a judge in the High Court.
Today the court was told the operation had gone well - but now the judge must decide whether to overrule the mother a second time - and approve radiotherapy which she fears will have long-term side-effects.
From the High Court, Bob Constantine reports:
A second operation on a 7-year-old boy with cancer has gone well, a high court was told today. The operation to remove a small growth from Neon Robert's brain was ordered by the court on Tuesday against his mothers wishes.
Sally Roberts, from Tiverton said the operation was unnecessary and disputed doctors' diagnoses. She is back at the high court today to argue against follow up treatment using radiotherapy or chemotherapy, because they have harmful side effects.
She wants the right to call in overseas medical experts, and the court hearing was adjourned so that she could talk to a new barrister acting on her behalf.
Another High Court hearing is due to begin later over the cancer treatment of seven-year-old Neon Roberts.
It will centre around whether he should have radiotherapy. His mother Sally Roberts ran away with her son Neon to stop him having treatment.
She wanted the operation delayed until more doctors had been consulted. But a High court judge agreed with medical experts that surgery needed to be completed urgently. Judge Bodey told the court it was likely he would make a ruling by the end of week on any further treatment.
A seven year old boy from Devon is due to have surgery today for his brain tumour - against the wishes of his mother.
Sally Roberts ran away with her son Neon to stop him having treatment. But a High Court judge agreed with medical experts that he needed urgent surgery.
Mr Justice Bodey ruled today that Neon Roberts can undergo surgery on a "residual tumour" but it is not yet clear whether he can receive radiotherapy.
The ruling in the Family Division of the High Court was due to decide whether Neon should undergo radiotherapy treatment following surgery, against the wishes of his mother.
That issue was put to one side to deal with the more pressing decision regarding his operation.