Meningioma is a benign tumor
that usually develops in the meninges, especially in the arachnoid cells
. The meninges are three membranes covering the brain and spinal cord
, and play a role in protecting the central nervous system. Meningiomas may well occur in the brain but also in the spine
. The causes are still unclear, but these tumors
mainly affect adults after the age of 40, especially women. Symptoms vary depending on the location of the meningiomas: headaches
, epileptic manifestations, and impaired vision for those affecting the brain, pain in the arms and legs, and even a loss of sensation or paralysis of part of the body
for those affecting the spine. After identification by CT scan or MRI
, it is necessary to operate to remove the meningioma and the prognosis is generally good.
Published by Jeff
Latest update on December 11, 2013 at 04:13 AM by Jeff.