<unk> C represent 0.1-0.5% of primary brain tumours. There is a genetic component to the formation of these tumors, causing a larger proportion of tumors to form in people of Asian descent than of other ethnic groups.<unk> s predominantly form in young adults, most commonly during the second or third decade of life. There is no evidence that the sex of a person is a determinant in the frequency of<unk> s.
Central neurocytoma
Neurothekeoma
Subependymoma
Pilocytic astrocytoma
Ganglioglioma
Glial tumor
Mantleoma
Ependymoma