What factors predispose people to meningiomas?
The only known predisposing factors associated with meningiomas are exposure to radiation, and certain genetic disorders (e.g. neurofibromatosis). Some have reported an association between meningiomas and the site of a previous injury (e.g. head trauma). However, the relationship with previous head injury isn’t well understood. Some have suggested that viruses may play some role as well, but this is unsubstantiated at this point. Meningiomas are also more common in women than in men, and have shown increased growth during pregnancy. They have hormone receptors and progesterone and estrogen may play a role in their development, but that role is still unclear.
