My son Mikey is a playful and loving little toddler, who likes nothing more than to spend hours playing with his toy farm animals while singing Old Macdonald Had a Farm. He loves cuddling up to watch Peppa Pig and playing with his baby brother, Bobby.But in December 2017,  when he was just 20 months old my wife and I noticed a lump in his tummy. After a trip to A&E, his condition was diagnosed as stage 4 high-risk neuroblastoma, with further tests revealing that the tumour had grown from above his right kidney to across almost his entire abdomen. It had heavily infiltrated his bone marrow. While Mikey has so far responded well to his treatment, immunotherapy spells the end of his frontline treatment available on the NHS, and his battle is far from over. Almost 50% of children with high-risk neuroblastoma relapse and when it does come back less than 1 in 10 survive. My family are fundraising in case we need to access treatment or clinical trials not available through the NHS.