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447. References. 453. Index. 488.

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Neurosurgery. 1995;37(2):319-21. 17. Milos P, Havelius U, Hindfelt  Tentorial and Posterior Fossa Meningiomas. 412. Surgical Outcome and Results. 427.

They originate from arachnoid cap cells, which are cells within the thin, spider web-like membrane that covers the brain and spinal cord. The arachnoid is one of three protective layers, collectively known as the meninges, which surround the brain and the spinal cord.

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The mortality rate was 9.8%. Meningiomas also may occur as a spinal tumor, more often in women than in men. This occurs more often in Western countries than Asian.

Tentorial meningioma

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Surgical Outcome and Results.

These types of posterior fossa meningiomas can cause headaches, seizures, and difficulty walking. A meningioma is a type of tumor that develops from the meninges, the membrane that surrounds the brain and spinal cord.

Tentorial meningiomas remain a formidable surgical challenge and, as the authors point out, are of great importance to all neurosurgeons. The authors' series is one of the largest, if not the largest, documented series of purely tentorial meningiomas, given that petroclival meningiomas were not included. Tentorial meningiomas comprise 3%of the total number of meningiomas seen at the New York Neurological Institute during the period analysed. Nineteen of the tumours were in women and five werein men.

Tentorial Meningiomas Hiroki Morisako, Takeo Goto, Kenji Ohata. 10. Foramen Magnum Meningiomas Angela M. Richardson, Karolyn Au, Jacques Morcos.
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Two of the meningiomas were of major size and with an attachment at the falco-tentorial junction, while the other was attached to the inferior notch of the tentorium. Tentorial meningiomas can be divided into incisural, falcotentorial, lateral, and posterior types based on their anatomical location, because surgical difficulty is related to the tumor region. The incisural type requires skull base approaches for radical removal. The Challenge: Tentorial Meningioma Nickkie’s tumor was a tentorial meningioma, a rare, benign tumor found along the surface of the tentorium cerebelli in the brain.

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Bild Subdural  Meningiomas originating from the tentorium cerebelli account for about 3% to 6% of all intracranial meningiomas and about 30% of the meningiomas found in the posterior fossa. Like other meningiomas, these tumors are most common among middle-aged women. A meningioma is a tumor that arises from the meninges — the membranes that surround your brain and spinal cord. Although not technically a brain tumor, it is included in this category because it may compress or squeeze the adjacent brain, nerves and vessels. Meningioma is the most common type of tumor that forms in the head. Patients harboring a lateral tentorium meningioma (T6–T7 subgroup) usually present with headache, dizziness, and gait unsteadiness.