Video Atlas of Neurosurgery

Supracerebellar Infratentorial Approach

Indications This approach is well suited for midline tumors in the pineal region: germinoma, teratoma, pineocytoma, pineoblastoma, astrocytoma, metastasis, ependymoma, epidermoid tumor, cavernoma ( Figure 8.1 ). Tumors in the midline tectal region. Midline pontomesencephalic lesions. Contraindications The approach is…

Cervicomedullary Tumors

Indications In general, most focal cervicomedullary tumors are considered benign in pathology. Common tumors of the cervicomedullary region include low-grade astrocytomas, gangliogliomas and ependymomas. They are typically well-delineated and benign tumors, typically amen­able to gross total resection. Contraindications Anaplastic astrocytomas…

Cerebellar Tumors

Indications The suboccipital craniotomy is used for most lesions in the posterior fossa. Its indications are: Brain tumors such as meningiomas, ependymomas, gliomas, medulloblastomas, acoustic neuromas and metastatic lesions. Vascular lesions such as aneurysms, cavernous malformations, arteriovenous malformations and intraparenchymal…

Brainstem Tumors

Indications In general, surgical resection is preferred for accessible, symptomatic lesions with a focal growth pattern, while stereotactic biopsy is typically reserved for tumors with a diffuse growth pattern. If obstructive hydrocephalus is present, it is treated with a CSF…

Deep Intra-Axial Tumors

Indications and Preoperative Considerations Selective deep-seated intra-axial tumors can be surgically resected with the use of a tubular retractor system that creates a controlled surgical corridor with minimal brain retraction and damage to surrounding brain tissue. This controlled surgical corridor…

Cortical/Subcortical Motor Mapping for Gliomas

Indications Intra-axial lesions are located in close proximity to the motor cortex (rolandic and perirolandic regions including the supplementary motor area). The infiltrative rather displacing nature of gliomas makes this approach suitable for low-grade gliomas (astrocytoma, oligoastrocytoma or oligodendrogliomas) and…

Awake Craniotomy and Speech Mapping for Gliomas

Indications Intra-axial lesions invading, or located in, eloquent areas related to the language cortex, especially in the dominant hemisphere. The infiltrative rather displacing nature of gliomas makes this approach very suitable for low-grade gliomas (astrocytoma, oligoastrocytoma or oligodendrogliomas) and high-grade…