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skull_base_tumor

Skull base tumor

Skull base tumors are relatively rare.

see Skull base meningioma.

Schwannomas comprise less than 10% of all primary intracranial tumors. Schwannomas of the vestibular nerve are the most common neoplasms that involve the temporal bone and represent 75% of tumors that occupy the cerebellopontine angle cistern.

Chondrosarcomas comprise approximately 0.1% of all intracranial tumors. Half of these develop at the cranial base.

Chordomas also comprise approximately 0.1% of all intracranial tumors. Forty percent of chordomas develop at the skull base.

Skull base metastases, not including direct extension, occur in 4% of cancer patients.

Types

Anterior cranial fossa

Meningioma

Olfactory neuroblastoma (esthesioneuroblastoma)

Paranasal sinus cancer

Middle cranial fossa

Which contains the pituitary gland. The pituitary gland is about the size of a pea and is located in the sella turcica (saddle-shaped bony structure in the sphenoid bone):

Sellar tumors:

Pituitary adenomas

Craniopharyngioma

Rathke’s cleft cyst

Posterior cranial fossa

Vestibular schwannoma

Chondrosarcoma

Chordoma

Epidermoid tumor

Meningioma

Types of skull base tumors and conditions:

Skull base brain tumors

Chondroma

Chondrosarcoma

Chordoma

Giant cell tumor

Hemangiopericytoma

Meningioma

Metastatic brain tumors

Nasopharyngeal angiofibroma

Neurofibroma

Olfactory neuroblastoma (esthesioneuroblastoma)

Osteoma

Paranasal sinus cancer

Petrous apex lesions

Rhabdomyosarcoma

Skull base sellar lesions

Adenoma

Craniopharyngioma

Rathke’s cleft cyst

Other skull base conditions

Cerebrospinal fluid (CSF) leak

Encephaloceles

Fibrous dysplasia

skull_base_tumor.txt · Last modified: 2015/11/02 20:53 (external edit)