What is a cavernous sinus meningiom?
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pair of cavernous cavities are thin -centered pockets below and behind orbit or eye sockets that collect blood from the face, eye and front brain. Cavernous sinus meningioma is a benign tumor resulting from cells that form the inner membrane of the brain called the PIA mater, which expands to fill the cavernous sinus. Cavernous Sinus has many important structures, including carotid artery and the third, fourth, fifth and sixth skull nerves. Most of the prevailing symptoms of cavernous sinus meningioma are created by compression of these structures by expanding tumor and form a cavernous sinus syndrome. These symptoms include pain behind the eye, eye redness, blurred or double vision, problems with eye movement and bulging the eye.
Patient with cavernous sinus meningioma may suffer from paralyzes of third, fourth and sixth skull nerves and produce different degrees of damage to the eye. Usually the patient has pain with attempts to move eyes. Reduced venous drainage from the eyeIt expands the superficial veins on the eye and gives the eye a reddish shade. The eye pressure can also be increased and the optical disk may seem swollen or pale, with the surrounding bleeding. Furthermore, the pupil can be fixed in the middle position and unreactive and the patient may be dull to feel on the surface of the eye and face.
When doctors suspect cavernous sinus meningioma, patients should undergo multilanar scanning with magnetic resonance (MRI) or computer tomography (CT) orbit and cavernous sinus areas. Although CT scan offers increased bone visualization, MRI scan provides better resolution of soft tissue structures. Doctors often order a contrasting dye to highlight the structures filled with blood, such as superior and lower orbital veins that flow into the cavernous sinus and internal cervical artery that passes through sinus. Preliminary and after contrasting SKEnvironmental information provides useful information, with ISOINNENSE tumors on T1 weighted MRI with dense improvements after injecting contrast. CT scan shows related thickening and hypercification of neighboring bone.
Patient with cavernous sinus meningioma has three basic treatment options. Some doctors recommend observation only for patients who grow slowly and create only a few symptoms. Patients with serial growth or gradually deteriorating symptoms may be necessary to undergo microsurgical removal of the tumor via the skull base with different approaches. Some therapeutic centers use gamma and linear accelerator to remove the tumor. In all forms of surgical management, surgeons must try to remove the entire tumor while saving internal carotid arts.