<unk>  <unk> C) is an extremely rare, ordinarily benign intraventricular brain tumour that typically forms from the neuronal cells of the septum pellucidum. The majority of<unk> s grow inwards into the ventricular system forming interventricular<unk> s. This leads to two primary symptoms of<unk> Cs, blurred vision and increased intracranial pressure. Treatment for a<unk>  typically involves surgical removal, with an approximate 1 in 5 chance of recurrence.<unk> s are classified as a grade II tumor under the World Health Organization's classification of tumors of the nervous system.
Central neurocytoma
Neurothekeoma
Subependymoma
Pilocytic astrocytoma
Ganglioglioma
Glial tumor
Mantleoma
Ependymoma