The falcine sinus is a normal anatomic structure located in the falx cerebri that closes after birth and is rarely observed in the adult population. We describe a unique case of persistent falcine sinus in an adult who presented with venous sinus obstruction.

chronic venous thromboses were also more common than acute thrombosis. Squizzato et al.1 reported 13 cases of acute cerebral sinus venous thrombosis associated with thyroid disease. The most common etiology of hyperthyroidism was Graves--Basedow disease, and a hypercoagulability state and even vascular compression in the event of large goiter were suggested as a pathogenetic mechanism. In the r...

Total occlusion of dural arteriovenous fistulas (DAVFs) via transarterial embolization is difficult due to the rich anastomotic network of the dural/falcine plethora of feeding arteries, blood supply to cranial nerves, and extracranial to intracranial anastomoses. Incomplete occlusion of the fistulas will result in recanalization of the DAVF from the multiple collateral arteries constituting th...

BACKGROUND AND PURPOSE Cases with spinal perimedullary arteriovenous fistulas (SPAVFs) or spinal dural arteriovenous fistulas (SDAVFs) at the cervicomedullary junction are rare. We performed a retrospective, angiographic study of 6 such patients to assess whether available angiographic data were predictive of the risk for hemorrhage. METHODS We report 6 patients with arteriovenous fistulas at...

BACKGROUND AND PURPOSE The purpose of this study was to evaluate the mortality rates associated with cerebral venous-sinus thrombosis in a large national sample. METHODS A cohort of patients with cerebral venous-sinus thrombosis was identified from the National Inpatient Sample database for the years 2000 to 2007. According to the International Classification of Diseases, 9th Revision, Clinic...

BACKGROUND AND PURPOSE The radiologic diagnosis of idiopathic intracranial hypertension (IIH) is one of exclusion, with no reproducible positive features described in the imaging literature. Because MR venography is prone to flow artifacts, diagnosis of secondary intracranial hypertension (SIH) can also be problematic. Vascular hydraulics can be useful for diagnosis of these conditions when mea...