Couldwell WT

[OBJECTIVE] Intracranial aneurysms (IAs) occur in up to 6% of adults, with multiple IAs (MIAs), which are associated with higher clinical risks, occurring in up to one-third of this population. Treatment for MIAs includes open surgical, end…

[BACKGROUND] Trigeminal schwannomas (TSs) are intracranial tumors that can cause significant brainstem compression. TS resection can be challenging because of the risk of new neurologic and cranial nerve deficits, especially with large (≥ 3…

[BACKGROUND AND OBJECTIVES] Distal basilar artery aneurysms (DBAs) are high-risk lesions for which endovascular treatment is preferred because of their deep location, yet indications for open clipping nonetheless remain. The subtemporal app…

[PURPOSE] To compare the efficacy, outcomes, and complications of single session (SS-SRS) and multisession (MS-SRS) stereotactic radiosurgery in the treatment of intracranial meningiomas. [METHODS] Relevant articles were retrieved from Pub…

[BACKGROUND] Dural arteriovenous fistulas (dAVFs) located at craniocervical junction are extremely rare (1%-2% of intracranial/spinal dAVFs). Their angio-architectural complexity renders endovascular embolization to be challenging given mul…

Brainstem cavernous malformations (CMs) encompass up to 20% of all intracranial CMs and are considered more aggressive than cerebral CMs because of their high annual bleeding rates. Microsurgical resection remains the primary treatment moda…

[OBJECTIVE] For patients with aneurysmal subarachnoid hemorrhage (aSAH) in whom endovascular treatment is not the optimal treatment strategy, microsurgical clipping remains a viable option. We examined changes in morbidity and outcome over …

Lenticulostriate artery aneurysms are uncommon lesions, usually found in adults after hemorrhage. Despite their challenging location, mortality rates after initial hemorrhage are favorable. Securing the hemorrhage source is critical but may…

Granular cell tumors are rare vascular neoplastic lesions of the sellar and suprasellar region that usually arise from the pituitary stalk but can originate as low as the posterior pituitary or as high as the tuber cinereum. Complete resect…

Although neurotropic, the varicella-zoster virus (VZV) is a rare cause of mycotic cerebral aneurysms. As with other mycotic aneurysms, medical management can provide complete resolution. Surgery for refractory aneurysms can be complicated b…

[PURPOSE] To summarize the clinical features and outcomes of petroclival meningioma patients treated with stereotactic radiosurgery (SRS) as either a primary or an adjuvant modality. [METHODS] Relevant articles were retrieved from PubMed, …

Although rare, intramedullary spinal cavernous malformations have a 1.4%-6.8% annual hemorrhage risk and can cause significant morbidity. Prior hemorrhage and size >1 cm are risk factors for future hemorrhage that, in addition to notable or…

Calcifying pseudoneoplasms of the neuraxis (CAPNONs) are uncommon benign lesions that are rarely diagnosed radiographically. We report an unusual case of a left middle cerebellar peduncle CAPNON with vasogenic edema and a perilesional cyst.…

[OBJECTIVE] The objective of this retrospective study was to compare the survival of patients with biopsy-proven skull base chordoma who had undergone stereotactic radiosurgery (SRS) with versus without prior fractionated radiation therapy …

Postoperative digital subtraction angiography (DSA) is the gold standard for establishing a cure of an arteriovenous malformation (AVM) after treatment. The incidence of residual AVM identified on postoperative DSA ranges from 1.8 to 11%. A…

[BACKGROUND AND INTRODUCTION] Dural arteriovenous fistulas (dAVFs) are a rare pathology with a clinical presentation related to their anatomical location. Craniocervical junction (CCJ) dAVFs are challenging to treat given the delicate struc…

[BACKGROUND] Despite ongoing improvements in endovascular techniques, open surgical management of basilar apex aneurysms is occasionally necessary.[2] Critical dissection of perforating vessels from the aneurysm is facilitated by the latera…

The authors describe the use of a porous polyethylene Flexblock implant for cosmetic cranioplasty. The implant may be used to cover any small- or medium-sized (< 8 cm) cranial defect, offering similar cosmetic results to standard alloplast …

The authors describe a cosmetic mastoidectomy technique for use when performing a combined supra/infratentorial craniotomy and transtemporal exposure. The technique involves a single temporal suboccipital bone flap and cosmetic mastoidectom…