Microvascular decompression for primary trigeminal neuralgia with the 3/4 circumferential expanded polytetrafluoroethylene (ePTFE) sleeve technique.

Background: Microvascular decompression (MVD) using Teflon or Ivalon is the surgeon's preference for treating trigeminal neuralgia (Tn). Still, sometimes the prosthetic material is unavailable, or there is some recurrence of pain during the follow-up. In this case series, we report the outcome analysis for MVD using the expanded polytetrafluoroethylene (ePTFE) sleeve technique in classic Tn.

Microsurgical and endoscopic-assisted supraorbital keyhole approach for intra-suprasellar cysticercosis.

Background: Treatment for intra/suprasellar cysticercosis can be challenging and may result in visual disturbances if not managed properly. Despite its limited knowledge, an effective surgical option exists to treat this condition. This article presents three cases of sellar cysticercosis, comprising one female and two male patients, managed with microsurgical supraorbital keyhole approach (mSKA) and endoscopic-assisted supraorbital keyhole approach (eaSKA).

The "ePTFE Sleeve" for Microvascular Decompression of the Facial Nerve.

Hemifacial spasm is a cranial nerve compression syndrome caused by the anteroinferior cerebellar artery (AICA) and posteroinferior cerebellar artery (PICA), characterized by involuntary tonic/clonic contractions of the muscles. The refractory hemifacial spasm can be treated with microvascular decompression, and multivessel compression could require more than conventional microvascular decompression. Multivessel compression may be challenging, and placement of conventional materials may not be sufficient and risks migration.

Surgical management of a penetrating drill bit injury to the skull base.

Background: Low-energy penetrating brain injuries are rarely encountered in neurosurgical practice. Immediate surgical management remains the primary treatment strategy to control potential bleeding and prevents infectious complications.

Case Description: A 28-year-old man presented with an orbital injury with left-sided chemosis, amaurosis, and ophthalmoplegia following an assault.

[Melanocytoma and meningeal melanocytosis, similar but different lesions].

Background: Meningeal melanomatosis is an extra-axial well-encapsulated malignant tumour with diffuse meningeal growth and dark coloration (due to high melanin contents), while meningeal melanocytoma is the focalized benign variant. Melanocytic lesions may be secondary to melanoma or be histologically benign, however, their diffuse nature makes them impossible to cure. Melanocytosis is a diffuse tumour that can form solitary extra-axial tumours, which invades the parenchyma and presents signs of malignancy with increased mitosis and Ki67, observed in 1 to 6% of immunopathological exams.

High-grade astroblastoma in a child: Report of one case and review of literature.

Background: Astroblastoma is a rare glial neoplastic lesion that affects children and adolescents; its histogenesis remains uncertain. It is considered to account for 0.5% of all glial neoplasms, and two different subtypes have been defined based upon histologic characteristics.