A two-year-old boy will receive revolutionary treatment for his rare disease after a mystery benefactor donated £40,000 . Kat Musgrove had 30 days to find £140,000 so her son Kian could fly to the U.S and have his neuroblastoma treated . She was struggling to raise the final bit of money until an anonymous donor from Luxembourg stepped in . Kian Musgrove , two , will receive revolutionary treatment for his rare cancer after a mystery benefactor donated £40,000 . Neuroblastoma is the cancer of specialised nerve cells , also known as neural crest cells . It is the second most common childhood tumour . The symptoms range from tiredness to lack of appetite and pain in the bones . Most children who are diagnosed with the condition are younger than five years old . Treatment includes surgery , chemotherapy , radiotherapy and antibody treatment . Almost half of neuroblastoma cases are an aggressive form and , despite very intensive treatment , it has a high chance of returning . It affects around 100 children every year . The 27-year-old , from Newcastle , said : ' I ca n't believe it . There was a note with the money saying `` good luck to your son '' . ' I still ca n't get my head around it . I keep looking to make sure the money is actually there . ' Kian will fly to Michigan for the treatment on March 31 . He was first diagnosed with stage four neuroblastoma on October 31 , 2013 , after doctors discovered 27 tumours around his kidneys and in his bones . Despite chemotherapy and numerous operations Kian still had an 80 per cent chance the cancer would return , doctors said . The new trial treatment - called DFMO - aims to prevent the cancer returning by stopping a certain cell that creates the neuroblastoma cell . His mother Kat ( centre ) had just 30 days to find £140,000 so Kian could fly to Michigan and have the trial treatment . Above , with sister Katie ( left ) Kian was first diagnosed with stage four neuroblastoma on October 31 , 2013 , after doctors discovered 27 tumours around his kidneys and in his bones . But it has to be started no later than 120 days after the patient has undergone their last bout of immunotherapy - and Kian 's finished almost 100 days ago . Ms Musgrove , who is in the process of booking her flights , said : ' I 'm so excited by what has happened , people have just been incredible . ' I want this for Kian so much and I want this to work so badly . 'But I 'm also scared . Scared because I 'm flying over there alone , not knowing what the future is going to hold . ' Kian 's family will continue to raise £500,000 for 'relapse therapy ' in case the trial treatment does not work and the cancer returns . Above , mother and son are pictured together before the trip . His family will continue to raise £500,000 for 'relapse therapy ' in case the trial treatment does not work and the cancer returns . Ms Musgrove added : ' I just hope this works for my little boy . ' To help with Kian 's fundraising visit here .
Kat was diagnosed with neuroblastoma in October 2013 . Mother Kian Musgrove , 27 , needed to raise £140,000 so he could fly to Michigan . Final chunk donated by someone in Luxembourg with 'good luck ' note .