alexa Meningioma|OMICS International|Anatomy And Physiology: Current Research

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Meningioma

" Meningioma constitutes 14% to 20% of intracranial neoplasms. Sites of predilection directly correlate with abundant arachnoid granulations and less than 1% are extradural intraosseous. Extradural meningiomas that arise in the skull have been referred to as calvarial, intradiploic, and intraosseous. The intraosseous tissue refers to the diploe of the cranial bones. Common locations include the periorbital region and frontoparietal region. The tumours are usually observed near or at the suture lines (most commonly at the coronal or pterion suture) or at previous fracture sites. These are typically firm and painless, with normal overlying skin, and may be detected incidentally. The male to female ratio is 1:1,1. The age of the patients ranged from 7 months to 82 years. Neurological signs and symptoms in patients are usually absent; however, presenting symptoms such as neurological deficit, palpable mass, seizures, vomiting, dizziness, orbital proptosis, blurred vision, hearing loss, tinnitus, headache, and vague sensations in the head are also reported. The tumors are typically either the osteoblastic or osteolytic subtype, although may be mixed versions . Imaging studies can also be variable. Primary intraosseous meningioma on plain x-ray films of the skull may be hyperostotic, osteolytic, or mixed. Computed tomography (CT) with bone windows shows a focally thickened, hyperdense lesion expanding the calvaria. Magnetic resonance imaging findings; The tumors are typically hypointense on T1-weighted images and hyperintense on T2- weighted images . ( Hülagü Kaptan1*, Pınar Karabağlı2, Şükrü Birler3, Fatih Kökeş3 and Omur Kasımcan- Cranial Intraosseous Meningioma) "
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Last date updated on June, 2014

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