A teenage cancer patient recovering from a radiation overdose is back in hospital following a brain operation.
Lisa Norris received 17 radiation overdoses at the Beatson Centre
Lisa Norris, 16, from Girvan, Ayrshire, is understood to have had an operation to remove fluid from her brain.
In January she was given 17 overdoses of radiation therapy during her treatment for a brain tumour at the Beatson Oncology Centre in Glasgow.
The teenager was told the blunder could cause long-term brain damage, leading to paralysis and even premature death.
She is reported to have undergone the latest procedure after weeks of feeling off-colour.
Her parents Liz and Ken said they were still waiting to hear from doctors whether the problem was due to the radiation overdose.
They told the Daily Record: "We don't know what has caused this but we are waiting to get some answers soon.
"At the moment, we are just concentrating on getting Lisa well again."
Lisa was taken to Glasgow's Southern General Hospital for the two-hour operation last week.
She had been complaining of blurred vision and had lost more than two stone in weight, according to the paper.
Mrs Norris said that doctors had warned that it might be the start of a number of health problems for the schoolgirl, who is due to be transferred to Yorkhill Hospital for observation later this week.
Human error was blamed for the overdose which left Lisa with burns on the back of her neck and head.
An investigation into the incident is under way.
A spokeswoman for NHS Greater Glasgow and Clyde said: "We've spoken with both Lisa and her parents and they have asked that no details of her condition are issued."