Anterior Middle Cranial Fossa

The posterior cranial fossa is part of the cranial cavity located between the foramen magnum and tentorium cerebelliIt contains the brainstem and cerebellum. The pterional approach is the standard approach for most lesions of the anterior and middle cranial fossa.

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This is the most inferior of the fossaeIt houses the cerebellum medulla and pons.

Anterior middle cranial fossa. Inside the cranial cavity the right and left lesser wings of the sphenoid bone which resemble the wings of a flying bird form the lip of a prominent ridge that marks the boundary between the anterior and middle cranial fossae. Skull base tumors such as meningiomas schwannomas epidermoids and surgeons commonly remove brain malignancies using the pterional approach. Middle cranial fossa - formed by body and greater wings of sphenoid temporal bone up. The sphenoid bone is an unpaired bone of the neurocraniumIt is situated in the middle of the skull towards the front in front of the basilar part of the occipital boneThe sphenoid bone is one of the seven bones that articulate to form the orbitIts shape somewhat resembles that of a butterfly or bat with its wings extended. Anteriorly it extends to the apex of the petrous temporal. Anterior cranial fossa - formed by frontal ethmoid and lesser wings of sphenoid.

This bony region of. This approach requires some degree of frontal lobe retraction which may result in olfactory. The sella turcica Turkish saddle is located at the midline of the middle cranial fossa.

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