In October 2022, when Arthur was four his mum Helen noticed a lump on his head. Over time Arthur developed a persistent cough, began to feel increasingly tired and more lumps appeared on his neck.
“Arthur just was not himself; we noticed changes in his mood."
In March 2023, Arthur, an avid Newcastle United fan, was diagnosed with acute lymphoblastic leukaemia and he became the first child in the world identified with a specific mutation for this form of leukaemia, a discovery that led to a difficult and uncertain treatment journey.