The cause of most cases is unclear. About 5% develop from another type of brain tumor known as a low-grade astrocytoma. Genetics Uncommon risk factors include genetic disorders such as neurofibromatosis, Li–Fraumeni syndrome, tuberous sclerosis, or Turcot syndrome. Previous radiation therapy is also a risk. For unknown reasons, it occurs more commonly in males. Environmental Other associations include exposure to smoking, pesticides, and working in petroleum refining or rubber manufacturing.<unk>  has been associated with the viruses SV40, HHV-6, and cytomegalovirus. Other Research has been done to see if consumption of cured meat is a risk factor. No risk had been confirmed as of 2013. Similarly, exposure to radiation during medical imaging, formaldehyde, and residential electromagnetic fields, such as from cell phones and electrical wiring within homes, have been studied as risk factors. As of 2015, they had not been shown to cause<unk> .
Glioblastoma
Ameloblastoma
Glioma
Medulloblastoma
Hemangioblastoma
Gliosarcoma
Astrocytoma
Gliosis