Sphenopalatine arteriovenous fistula complicating transsphenoidal pituitary surgery: A rare cause of delayed epistaxis treatable by endovascular embolization.

Background: Vascular injuries in transsphenoidal surgery for pituitary adenomas are uncommon but can result in serious disability or death.

Case Description: A 46-year-old man, who underwent resection of a pituitary adenoma with suprasellar extension via a transsphenoidal approach, presented with massive epistaxis five days postoperatively. Angiography revealed an arteriovenous fistula (AVF) between the right sphenopalatine artery and a deep vein draining to the right internal jugular vein, as well as contrast agent extravasation at the fistula point.

Erratum: Superficial vessel reconstruction with a Multiview camera system.

[This corrects the article DOI: 10.1117/1.JMI.

Superficial vessel reconstruction with a multiview camera system.

We aim at reconstructing superficial vessels of the brain. Ultimately, they will serve to guide the deformation methods to compensate for the brain shift. A pipeline for three-dimensional (3-D) vessel reconstruction using three mono-complementary metal-oxide semiconductor cameras has been developed.

A treatment-refractory spinal dural arteriovenous fistula sharing arterial origin with the Artery of Adamkiewicz: Repeated endovascular treatment after failed microsurgery.

Background: Effective management of a spinal dural arteriovenous fistula (SDAVF) can be accomplished with either microsurgery or endovascular embolization, but there is a consensus that in patients in whom a radiculomedullary artery supplying the anterior spinal artery (ASA) originates from the same feeding artery as the SDAVF, the endovascular approach is to be avoided.

Case Description: The patient was a 46-year-old woman with progressive lower limb paraparesis, sensory deficit, and sphincter dysfunction. Magnetic resonance imaging (MRI) and spinal angiography showed an SDAVF fed by a branch from the left second lumbar segmental artery, and the artery of Adamkiewicz (AA), a major ASA supplier, originating from the same segmental artery just proximal to the SDAVF.

Symptomatic delayed trans-dural herniation and strangulation of cauda equinae following resection of Myxopapillary ependymoma.

Pseudomeningocoele is a recognised complication of spinal surgery. It could be either asymptomatic or symptomatic. We present a 63-year-old male who developed a delayed pseudomeningocoele and symptomatic transdural herniation and strangulation of the cauda equinae following resection of a Myxopapillary ependymoma.