The Far Lateral Approach
Preoperative Considerations • The far lateral provides wide access to the dorsolateral compartment yet allowing exposure to the lateral aspect of the ventromedial compartment of the posterior fossa (270° visualization…
Subfrontal and Extended Subfrontal Craniotomy/Transbasal Approach
There are a variety of different techniques that can be used to surgically manage anterior skull base lesions. In this chapter we demonstrate the value of the standard and extended…
Pituitary Adenomas
Preoperative Considerations • Pituitary adenomas are the most prevalent intrasellar lesions and the third most prevalent primary intracranial tumors. These lesions can lead to significant neurologic and/or endocrine-related morbidity secondary…
Endoscopic Approach to the Ventricles
Preoperative Considerations • Microscopic transcortical or transcallosal approaches may be associated with brain injury and/or retraction that can result in seizures, focal neurologic deficits and cognitive impairment. Endoscopic approaches for…
Orbitozygomatic Craniotomy
Indications and Contraindications • The addition of the orbitozygomatic (OZ) osteotomies to the fronto-temporosphenoidal craniotomy increases the surgeon’s workspace and minimizes the brain retraction required to reach deep-seated pathology. The…
Telovelar Approach
Indications • Indicated for lesions located within the fourth ventricle or brainstem that extend higher than the pontomedullary junction. The alternative approach has traditionally been the transvermian approach, where the…
Pterional Craniotomy
Indications • The pterional craniotomy and the transsylvian approach are the most used techniques in contemporary neurosurgery. • The pterional craniotomy allows exposure of the frontoparietal and temporal opercula together…
Transcallosal Approach for Intraventricular Tumors
Preoperative Considerations • The transcallosal approach allows midline exposure of the anterior two-thirds of the third ventricle. • Preoperatively, in addition to standard MR imaging, venography is often helpful to…
Posterior Fossa Meningiomas
Indications and Preoperative Considerations • Posterior fossa meningiomas are uncommon lesions that can be found virtually anywhere in the infratentorial space. The management of these lesions will depend on their…
Transcortical Approach to the Lateral Ventricles
Introduction • Tumors of the lateral ventricle represent less than 1% of all intracranial tumors. The majority of these lesions are benign or low grade. • The lateral ventricles are…
