Meningiomas

Meningiomas are benign tumors of the meninges, which can compress adjacent brain tissue. Symptoms depend on the tumor location. The diagnosis is made by an MRI with contrast medium. It can with surgical excision, stereotactic radiosurgery and are sometimes treated with radiation.

Meningiomas, v. a. with a diameter <2 cm, are among the most common intracranial tumors. Meningiomas are the only brain tumors, which are more common in women. These tumors occur preferentially between 40 and 60 years of age, but can occur even in childhood. These benign tumors can develop wherever there Duragewebe, most commonly on the convexities near the venous sinuses, along the base of the skull and in the posterior fossa and rarely within the ventricle. It can form multiple meningiomas. Meningiomas compress the brain tissue, but they are not invasive. You can grow into adjacent bone and destroy them. There are many histological forms; all have a similar clinical course, and few can become malignant.

Meningiomas are benign tumors of the meninges, which can compress adjacent brain tissue. Symptoms depend on the tumor location. The diagnosis is made by an MRI with contrast medium. It can with surgical excision, stereotactic radiosurgery and are sometimes treated with radiation. Meningiomas, v. a. with a diameter <2 cm, are among the most common intracranial tumors. Meningiomas are the only brain tumors, which are more common in women. These tumors occur preferentially between 40 and 60 years of age, but can occur even in childhood. These benign tumors can develop wherever there Duragewebe, most commonly on the convexities near the venous sinuses, along the base of the skull and in the posterior fossa and rarely within the ventricle. It can form multiple meningiomas. Meningiomas compress the brain tissue, but they are not invasive. You can grow into adjacent bone and destroy them. There are many histological forms; all have a similar clinical course, and few can become malignant. Symptoms and signs The symptoms depend on what part of the brain is compressed, and therefore (s. Symptoms of meningioma on the location) from the location of the tumor. Midline tumors in the elderly cause dementia with few other focal neurological deficits. Symptoms of meningioma on the location site findings skull base visual loss Oculomotor paralysis exophthalmus cerebral convexities Focal seizures Cognitive deficits During sign of increased intracranial pressure clivus and apical petrous gait disorders ataxia of the extremities deficiencies with respect to the V, VII. And VIII. Cranial nerves Foramen magnum ipsilateral suboccipital pain paralysis that begins in the ipsilateral arm and to the ipsilateral leg progresses and then on leg and arm the other side Lhermitte's sign overlaps Sometimes cranial nerve palsies (eg. As dysphagia, dysarthria, nystagmus, diplopia, hypoesthesia in the face) olfactory cleft anosmia Sometimes papilledema and vision loss parasagittal or Falx spastic paralysis or sensory disorders, tentorielle usually beginning in the contralateral leg, but occasionally on both sides Cognitive deficits Posterior Fossatumoren, which after superior or inferior hydrocephalus extend sphenoid: Medial (ingrowth into the cavernous sinus) Oculomotor paralysis numbness in the face center (ingrowth forward into the orbit) visual loss exophthalmos Lateral (plaque s in the form of a spherical mass, or a meningioma *) seizures headache tubercle sellae visual loss bone changes, sometimes visible by imaging methods * meningioma en plaque includes a scattering in the dura, with thickening d He Dura and invasion of adjacent bone one; the tumor can infiltirieren the temporal bone. Diagnostic MRI, the diagnosis is made similar to other brain tumors, usually based on an MRI with paramagnetic contrast agents. Bony abnormalities (eg. B. brain atrophy, cerebral hyperostosis to the convexities, changes in the tubercle sellae) can be incidental findings of a CT or a normal X-ray examination. Meningioma, parasagittal Image courtesy of William R. Shapiro, M.D. var model = {thumbnailUrl: '/-/media/manual/professional/images/meningioma_parasagittal_high_de.jpg?la=de&thn=0&mw=350' imageUrl: '/-/media/manual/professional/images/meningioma_parasagittal_high_de.jpg?la = en & thn = 0 ', title:' meningioma, parasagittal 'description:' u003Ca id = "v37896491 " class = ""anchor "" u003e u003c / a u003e u003cdiv class = ""para "" u003e u003cp u003eKontrastmittelverstärkte MRI scan of a meningioma. The parasagittal situation is characteristic of meningiomas u003c / p u003e u003c / div u003e 'credits'. Image courtesy of William R. Shapiro

Health Life Media Team

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