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Meningioma seen at autopsy, as a tumor of the dura mater extending into the cranial cavity, and can be detached from the bone along with the rest of the dura mater. Small tumors (e.g., < 2.0 cm) usually are incidental findings at autopsy without having caused symptoms. Larger tumors may cause symptoms, depending on the size and location.
Meningioma, a tumor of the meninges or membranes that surround the nerves passing through the CPA; Cerebellar astrocytoma, a malignant tumor of star-shaped glial cells called astrocytes in the cerebellum; Intracranial epidermoid cyst; Lipoma; Glomus jugulare associated with the glossopharyngeal nerve; Idiopathic hypertrophic pachymeningitis [3]
The cerebellopontine angle (CPA) (Latin: angulus cerebellopontinus) is located between the cerebellum and the pons. [1] The cerebellopontine angle is the site of the cerebellopontine angle cistern.
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.
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]
The review focused on studies of brain cancer and other cancers of the central nervous system—including glioma, meningioma, acoustic neuroma, pituitary tumors, and more.
Micrograph of psammoma body in the centre of the field in a meningioma of brain. H&E stain. A psammoma body is a round collection of calcium, seen microscopically. The term is derived from Greek άμμος (ámmos) 'sand'.
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