The family of a teenage boy whose cancer returned days after he celebrated being cancer-free say a new clinical trial gives their son "a fighting chance". Ethan, 14, was diagnosed with Burkitt Lymphoma - a type of fast growing non-Hodgkin lymphoma (nHL) - in January. He underwent cancer treatment at Noah's Ark Children's Hospital and enjoyed "two weeks of relative normality" at home in May after ringing the bell to mark the end of seemingly successful chemotherapy.