A benign tumour in the meninges.
A meningioma is a type of tumor that arises from the meninges, a membrane that covers the brain and spinal column. Meningiomas occur most often in the brain but can also occur along the spinal column. Meningiomas are rare in children; in fact, they account for only 2% of the 2,000 new cases of pediatric brain tumors diagnosed each year; this is in contrast to the relatively high rate in adults. Meningiomas that develop during childhood also differ from those that occur in adults in that pediatric meningiomas are more common in males, tend to be larger and more cyst-like, occur more often in unusual sites, and are more aggressive and malignant. Further, these tumors have been strongly associated with neurofibromatosis. It is estimated that 13-41% of children with meningiomas have neurofibromatosis.
A benign tumor of the coverings of the brain.
A benign tumor arising from the membranes, or meninges, that surround the brain and spinal cord. Meningiomas are rare tumors that can occur at any age. Depending on size and location, meningiomas may cause symptoms such as headache, vomiting, impaired mental function, speech loss, and visual disturbances. However, many meningiomas do not cause any symptoms. If the tumor penetrates the overlying bone, thickening and bulging of the skull may occur. Depending on the size and location of the meningioma, surgical removal may be required. When this is not possible, tumors are treated with radiation therapy. Asymptomatic meningiomas may not require treatment.
A tumor arising from the fibrous coverings of the brain and spinal cord (meninges). It is usually slow-growing and produces symptoms by pressure on the underlying nervous tissue. In the brain the tumor is a cause of focal epilepsy and gradually progressive neurological disability. In the spinal cord it causes paraplegia and the Brown-Sequard syndrome. Some meningiomas (known as meningeal sarcomas) are malignant and invade neighboring tissues. Treatment of the majority of cases is by surgical removal if the tumor is accessible. The more malignant varieties may also require additional radiotherapy. Some patients have been known to have symptoms for as long as 30 years before the tumor has been discovered.
A slow-growing tumor that originates in the meninges.
An uncommon, benign growth located in the meninges (the protective layers around the brain). A meningioma originates from the arachnoid mater (the middle layer) and typically becomes connected to the dura mater (the outer layer).
The meningioma grows gradually and could reach a considerable size before showing any signs. Symptoms might encompass headaches, nausea, and cognitive decline. Speech or vision issues could also arise. If the tumor infiltrates the surrounding skull bone, it could lead to the skull becoming thicker and protruding.
A tumor typically found in the brain’s protective layers, though sometimes it appears in other areas of the central nervous system. While it primarily grows by expanding, it can also be invasive, potentially indicating malignancy.