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  2. Meningioma - Wikipedia

    en.wikipedia.org/wiki/Meningioma

    Even if, by general rule, neoplasms of the nervous system (brain tumors) cannot metastasize into the body because of the blood–brain barrier, anaplastic meningioma can. Although they are inside the cerebral cavity, they are located on the bloodside of the BBB, because meningiomas tend to be connected to blood vessels.

  3. Optic nerve sheath meningioma - Wikipedia

    en.wikipedia.org/wiki/Optic_nerve_sheath_meningioma

    Radiation treatment of ONSM. Optic nerve sheath meningiomas (ONSM) are rare benign tumors of the optic nerve. 60–70% of cases occur in middle age females, and is more common in older adults (mean age 44.7 years). It is also seen in children, but this is rare.

  4. Interventional neuroradiology - Wikipedia

    en.wikipedia.org/wiki/Interventional_neuroradiology

    Interventional neuroradiology (INR) also known as neurointerventional surgery (NIS), endovascular therapy (EVT), endovascular neurosurgery, and interventional neurology is a medical subspecialty of neurosurgery, neuroradiology, intervention radiology and neurology specializing in minimally invasive image-based technologies and procedures used in diagnosis and treatment of diseases of the head ...

  5. Leptomeningeal cancer - Wikipedia

    en.wikipedia.org/wiki/Leptomeningeal_cancer

    The treatment is done to reduce pressure on the brain caused by any cerebrospinal fluid buildup and to reduce the number of cancer cells causing the pressure. For the best care, patients should see a physician who regularly treats leptomeningeal cancer and is most up-to-date on medicines that penetrate the blood-brain barrier, how to treat the ...

  6. Sphenoid wing meningioma - Wikipedia

    en.wikipedia.org/wiki/Sphenoid_wing_meningioma

    A meningioma is a benign brain tumor. It originates from the arachnoid (not the dura), the tissue covering the brain and spinal cord lying deep to the dura. Meningiomas are much more common in females, and are more common after 50 years of age. Of all cranial meningiomas, about 20% of them are in the sphenoid wing.

  7. Brain tumor - Wikipedia

    en.wikipedia.org/wiki/Brain_tumor

    This is an accepted version of this page This is the latest accepted revision, reviewed on 13 February 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...

  8. Dural tail sign - Wikipedia

    en.wikipedia.org/wiki/Dural_tail_sign

    Dural tail sign seen associated with a meningioma. The dural tail sign (also known as "dural thickening", "flare sign", or "meningeal sign") is a radiological finding observed in magnetic resonance imaging (MRI) studies of the brain that refers to a thickening of the dura mater immediately adjacent to a mass lesion, such as a brain tumor. [1]

  9. Cerebellopontine angle syndrome - Wikipedia

    en.wikipedia.org/wiki/Cerebellopontine_angle...

    With treatment, the likelihood of hearing preservation varies inversely with the size of the tumor; for large tumors, preservation of hearing is rare. Because acoustic neuromas, meningiomas and most other CPA tumors are benign, slow growing or non-growing, and non-invasive, observation is a viable management option.

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