A young boy, Theo Lock, was diagnosed with a rare stage four cancer after experiencing severe leg pain that was initially misinterpreted as constipation or arthritis. Theo, only four years old and just starting primary school, began to suffer from intense leg pain that hindered his ability to walk properly.
Despite initial suggestions that his symptoms might be related to constipation or arthritis, Theo’s mother, Jess Horne, persisted in seeking answers for her son’s condition. An x-ray revealed a possible cyst on Theo’s hip, and further tests identified a mass near his kidney, leading to the diagnosis of stage four neuroblastoma in March.
Transferred to Royal Manchester Children’s Hospital for intensive chemotherapy, Theo’s pain became so unbearable that he would cry while attempting to stand. Describing the ordeal as a huge shock, Theo’s aunt, Poppy Lock, emphasized his initial resilience and joyful demeanor before the chemotherapy took its toll on his body, causing him to spend most of his days sleeping.
Neuroblastoma, a rare cancer affecting children’s nerve tissue, affects approximately 100 children under 14 in the UK each year. Poppy initiated a GoFundMe campaign to support Theo and his family after Jess left her job to be with her son during his treatment, with the fundraiser already surpassing £23,000.
The success of the fundraiser has been overwhelming for Poppy, who hopes it will not only provide financial aid but also raise awareness about neuroblastoma and the importance of advocating for proper medical diagnosis. The family’s experience highlights the necessity for parents to persist in seeking medical attention if they suspect something is wrong, particularly with rare conditions like neuroblastoma.

