Petroclival meningioma
Introduction Petroclival meningiomas are relatively rare among meningiomas (~1%) that arise from the upper two-thirds of the clivus at the petroclival junction. As compared with clival meningiomas, they are located…
Cerebellopontine angle meningioma
Introduction Cerebellopontine angle (CPA) meningiomas account only for ~1% of meningiomas; however, among posterior fossa meningiomas; they account for 50% to 60% of these lesions. Lesions in this region are…
Cavernous sinus meningiomas
Introduction A relatively uncommon location for meningiomas is within the cavernous sinus. , Surgery within the cavernous sinus has undergone constant change from observation to aggressive surgical resection to stereotactic…
Nonfunctional pituitary adenoma with vision loss
Introduction Pituitary adenomas have an estimated prevalence of 10%, in which they are considered the fourth most common intracranial tumor after gliomas, meningiomas, and schwannomas. It is estimated that approximately…
Lateral sphenoid wing meningiomas
Introduction A common location (∼20%) for meningiomas to occur is along the sphenoid wing. , The sphenoid wing extends from the anterior clinoid process medially to the pterional laterally, and…
Medial sphenoid wing meningioma
Introduction Meningiomas are relatively common neoplasms that arise from arachnoid cap cells and account for approximately 20% to 30% of all primary intracranial tumors. Of all meningiomas, approximately 15% to…
Foramen magnum meningiomas
Introduction Foramen magnum meningiomas are considered common tumors in rare locations, in which they account for approximately 3% of intracranial meningiomas. They, however, account for approximately 70% of the benign…
Parafalcine meningiomas
Introduction Parafalcine meningiomas are among the most common locations for meningiomas, in which they account for 25% of meningiomas along with parasagittal meningiomas. Although they are in the same general…
Parasagittal meningioma with sinus obstruction
Introduction Meningiomas make up approximately 36% of all intracranial tumors, where the most common location for these lesions is abutting the sagittal sinus or falx. This location inevitably makes these…
Parasagittal meningiomas without sinus invasion
Introduction Meningiomas are among the most common primary brain tumor in adults, and the most common locations are parasagittal/parafalcine lesions, which account for 25% of meningiomas. These meningiomas arise from…
