The most common types of primary brain tumours are gliomas and meningiomas. Gliomas includes all primary brain tumours that originate from neuroepithelial glial cells (including ependymal cells, astrocytes, oligodendrocytes and astrocytes) and form the majority of all primary brain tumours, with both adults and children affected. Meningiomas are non-glial tumours that arise from the arachnoid meningothelial cells within the meninges, and form around 30% of all brain tumours.
Pituitary tumours are fortunately rare, however due to their endocrinological link, can often present secondary to excess hormone secretion (as opposed to a primarily neurology symptom).
Spinal tumours can be very debilitating, posing a significant risk to patient morbidity and mortality. Whilst primary spinal tumours form around 20% of all central nervous system tumours, in fact the most common tumour type of the spine is secondary metastases.