When little Macsen Speakman bumped his head at 13 months old, his parents Ian and Bethan spotted a lump on his ear that did not go away. To be on the safe side they went to their GP, who then referred him for a biopsy in hospital.
"The doctors said that it might be something suspicious, and then we got a call to say that we should come into the hospital," explained Ian, from Llandaff, Cardiff. "They told us it was leukaemia, and from that moment everything changed - it felt like being in a vortex."
Macsen was diagnosed with acute lymphoblastic leukaemia (ALL) - a cancer of the white blood cells which help the body to fight infection - in May 2016, making him one of the 75 children diagnosed with cancer in Wales every year.