Olfactory Groove Meningioma

Olfactory Groove Meningiomas (OGMs) are benign brain tumors that arise from the meninges — the protective layers covering the brain — in the front part of the skull base. Although usually slow-growing, they can reach a large size before causing symptoms due to their deep location and gradual pressure on...

Tuberculum Sellae Meningioma

Tuberculum Sellae Meningiomas (TSMs) are benign tumors arising from the dura mater along the tuberculum sellae and planum sphenoidale — the bony structures at the front of the sella turcica, near the optic nerves and chiasm. Although usually slow-growing, their strategic location near critical visual and hormonal structures often leads...

CPA Tumors

The Cerebellopontine Angle (CPA) is a deep region located between the cerebellum, brainstem, and temporal bone, where several important cranial nerves (V–XI) and blood vessels pass. Tumors in this area most commonly include Acoustic (Vestibular) Schwannomas and Meningiomas. These lesions are usually benign and slow-growing, but due to their location...

Clival and Petroclival Meningiomas

Clival and Petroclival Meningiomas are rare, slow-growing tumors arising from the dura mater at the clivus or petroclival junction. Although benign, their deep location near the brainstem, cranial nerves, and major arteries (basilar, internal carotid, vertebral) makes them among the most challenging skull base tumors to treat. Advances in microsurgical...

Foramen Magnum and Craniovertebral Junction (CVJ) Meningiomas

Foramen Magnum and CVJ Meningiomas are rare, benign tumors located at the junction between the brain and spinal cord. This complex anatomical zone contains the lower brainstem, upper spinal cord, vertebral arteries, and cranial nerves IX–XII. Although slow-growing, these tumors can cause significant neurological symptoms due to progressive compression. Modern...