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…

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…

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…

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…

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…

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…

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…

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…

Indications and Preoperative Considerations • Falcine meningiomas are extradural lesions that arise from the falx cerebri. They might be classified based on their relationship with the superior sagittal sinus (SSS)…

Indications and Preoperative Considerations • Meningiomas are one of the most common primary intracranial brain tumors. They represent 34% of all primary brain tumors and originate from the arachnoid cells…