I've been here and will try to keep this as factual as I can.
My DS was diagnosed with medulloblastoma when he was 8 years old in 1995. He was very ill by the time we got the diagnosis. It is actually 17 years today since we were told he had brain cancer. 17 years ago we were sat by his bed scared out of our wits wondering what the hell was going to happen to our beautiful little boy.
He had neurosurgery where they removed 99% of the tumour and we were asked to put him into a medical trial where he might get chemo as well as the standard treatment of radiotherapy. Back then chemo was not a standard treatment for brain tumours. DS was selected to just have radiotherapy and no chemo.
We were warned about all the potential side effects of radiotherapy - short term memory problems, IQ issues, learning difficulties, growth problems etc but we felt we had no choice. We wanted DS to live more than anything.
He had 33 days of radiotherapy to his head and spine. He was very sick and had to take anti sickness tablets. He lost all his hair and couldn't go out in the sun without Factor 50 cream on for about 5 years. He also suffered from short term memory loss and some odd forms of dyslexia and dyscalcula. It did take his school to get a letter from DS's clinical psychologist before they took his problems seriously but once they did it was so much easier.
The radiotherapy did damage DS's pituitary gland and he had to have growth hormone injections for 2 years during puberty. He still has to take thyroxine tablets and will for life.
DS graduated from Uni last year with an BSc Honours degree. After all the warnings we were given about his treatment I never thought it would be possible.
Radiotherapy does sound terrifying but it is an effective treatment and it does save lives.