Rare Tumours of the Central Nervous System in Children

Since tumours of the central nervous system (CNS) are rare in children to begin with, there are certain types that are very rare, occurring with a frequency of less than 5 % of all paediatric CNS tumours. These deserve special focus because of some key challenges. For one, the initial descriptive histology gathered from a small series of tumour samples makes it challenging to define unique characteristics for some very rare tumours. Most …