Understanding Cancer
Rare Cancers
Rare cancers that affect children are rarer than those commonly diagnosed within paediatric oncology
Rare cancers overview
In the UK, childhood cancer is classified as a rare disease. These type of illnesses can be both life-limiting and life-threatening, and disproportionately affect children. 75% of all rare diseases affect children and sadly, more than 30% of children with a rare disease die before their fifth birthday. Patients with rare diseases, such as cancer, and their families can face a lifetime of complex care and living with a rare disease can also have a huge impact on someone’s education, financial stability, mobility and mental health (Department of Health & Social Care, The UK Rare Diseases Framework 2021).
Despite being a rare disease overall, there are cancers affecting children that are rarer than those commonly diagnosed within paediatric oncology. These rarer childhood cancer types are classified into two groups:
- Other malignant epithelial neoplasms and malignant melanomas
- Other and unspecified malignant neoplasms
Other malignant epithelial neoplasms and malignant melanomas include but are not limited to:
- Adrenocortical carcinomas
- Thyroid carcinomas
- Nasopharyngeal carcinomas
- Malignant neoplasms
- Skin carcinomas
Other and unspecified malignant neoplasms include other specific malignant tumours and other unspecified malignant tumours.
For more detailed information on each we recommend you speak to your medical team.
Learn more about rare types of childhood cancer
Topics on this page
Related topics
We have lots of information to help you learn more about childhood cancer. From specific cancer types, to treatments and causes.
Fundraiser of the Month: Shay & Ger
Fundraiser of the Month: Shay & Ger Our Fundraiser of the Month for February 2026 goes to Shay (19) &…
Read more Fundraiser of the Month: Shay & Ger
Inaya’s Leukaemia Story
Inaya‘s Leukaemia Story Inaya was just 4 years old when she started to get poorly and was soon after diagnosed…
Read more Inaya’s Leukaemia Story
Childhood cancer survivor defies odds to become a mother
Childhood cancer survivor defies odds to become a mother Children with Cancer UK’s new film spotlights late effects and drives…
Read more Childhood cancer survivor defies odds to become a mother
Childhood cancer charities unite to fund £700,000 of paediatric cancer research
Childhood cancer charities unite to fund £700,000 of paediatric cancer research Children with Cancer UK and CCLG: The Children &…
Read more Childhood cancer charities unite to fund £700,000 of paediatric cancer research
New research co-funded with the Bone Cancer Research Trust to develop next-generation immunotherapy for Ewing sarcoma
£1 million research investment to develop next-generation immunotherapy for Ewing sarcoma New research funded by Children with Cancer UK in…
Read more New research co-funded with the Bone Cancer Research Trust to develop next-generation immunotherapy for Ewing sarcoma
£1 million to develop next-generation immunotherapy for Ewing sarcoma
£1 million to develop next-generation immunotherapy for Ewing sarcoma New research funded by Children with Cancer UK in collaboration with the Bone…
Read more £1 million to develop next-generation immunotherapy for Ewing sarcoma
Fundraiser of the Month: Manchester Youth Super League
Fundraiser of the Month: Manchester Youth Super League Our Fundraiser of the Month for January 2026 goes to MYSL, who…
Read more Fundraiser of the Month: Manchester Youth Super League
Christmas Appeal 2025
Give the gift of hope this Christmas and buy a Corry bear to support children with cancer Children with Cancer…
Read more Christmas Appeal 2025
Fundraiser of the Month: Oli & Ann
Fundraiser of the Month: Oli & Ann Our Fundraiser of the Month for December 2025 goes to Oli & Ann,…
Read more Fundraiser of the Month: Oli & Ann
Childhood Cancer Conference 2025
Childhood Cancer Conference 2025: driving the shift from toxic therapies to targeted care Pioneering research shows how a simple blood…
Read more Childhood Cancer Conference 2025