TY  - BOOK
AU  - Mendoza, Jose Maria M., MD.
TI  - Sphenoid meningioma : : a case study / 
AV  - RAD 2020 0005 
PY  - 2020///
CY  - Fairview, Quezon City
PB  - Department of Radiology, FEU-NRMF
N1  - Include bibliographical references; RESDR
N2  - Abstract:  Meningiomas can occur at any location within the CNS. Over 90% are supratentorial in location. Almost half of all meningiomas are most commonly located in parasaggital/convexity. Between 15-20% are located along the sphenoid ridge. Other less common locations are the posterior fossia (8-10%), olfactory groove (5-10%) and parasellar (5-10%). Rare locations include the intraventricular, pineal extracranial and intraosseous regions.  Symptoms would vary depending on the size and tumor site. Only less than 10% are symptomatic. Most common presentations include headache, paresis and change in mental status. Depending on its location, meningiomas may present with different symptoms like visual field defects, anosmia, cranial nerve deficits, seizures, hyrdrocephalus ect. due to its mass effect.  This case report presented a meningioma located in the sphenoid particularly in the sella with mass effect in the optic chiasm causing blurring of vision and headache.  Through the clinical presentation of the patient is somewhat common, it needed imaging studies in order to be diagnosed and evaluated before planning for its management.  Imaging modalities such as CT scan and MRI are essential in the diagnosis of meningiomas and to determine its type depending on the characteristics that exhibits. Classification of this meningioma subtypes and visualization of its extent may aid the clinician to decide on the management that is best suited for the patient. Since the symptoms of meningiomas may mimic other pathologies, imaging is helpful for the clinician to narrow down on differentials and correlate with proper history and physical examination for the treatment and management of the patient.
ER  -