A 57-year-old woman presented with acute confusion. CT-scan showed a left-sided hemorrhage, and MR-imaging demonstrated an adjacent cavernous malformation (CM) associated complex developmental venous anomaly (DVA) continuous the hemorrhage (figure, A–C). Digital subtraction angiography arteriovenous (AVM) draining into DVA D–F). DVAs are typically-benign lesions commonly CMs rarely, AVMs.1 Conc...

BACKGROUND AND PURPOSE The pathogenesis of aneurysms associated with cerebral arteriovenous malformation (AVM) feeder vessels is poorly understood. We sought to determine the hemodynamic characteristics of AVM feeder vessels with and without aneurysms. METHODS Patients with AVMs associated with feeder aneurysms who had flow, vessel diameter, and wall shear stress measured before treatment usi...

BACKGROUND AND PURPOSE Endovascular treatment with cyanoacrylate embolization is an option when complete obliteration of the nidus of an intracranial arteriovenous malformation (AVM) is the goal. Our purpose was to evaluate the rates of initial success and permanent cure of such treatment in a Chinese population. METHODS Twenty-seven consecutive patients with an intracranial AVM underwent end...

OBJECTIVE To conduct a population based study of brain arteriovenous malformation (AVM) prevalence. METHODS Multiple, overlapping sources of case ascertainment were used to establish the point prevalence of brain AVMs in the adult population of the Lothian health board of Scotland. Patients were sought retrospectively from all local general (family) practitioners, neurologists, neurosurgeons,...

Increasing evidence supports the use of embolisation to treat pulmonary arteriovenous malformations (AVMs). Most pulmonary AVM patients have hereditary haemorrhagic telangiectasia (HHT), a condition that may be associated with pulmonary hypertension. The current authors tested whether pulmonary AVM embolisation increases pulmonary artery pressure (P(pa)) in patients without baseline severe pulm...

A 67-year-old man with a history of melena and a hemoglobin level of 4.8g/dL was referred to our center for endoscopic evaluation. He had no significant comorbidities and his liver and renal functions were normal. His anemia was corrected with multiple blood transfusions. As upper gastrointestinal endoscopy showed fresh blood in the second part of the duodenum, a side-viewing endoscopy was carr...

A 75-year-old man was referred to our clinic for evaluation of iron deficiency anemia and occult gastrointestinal bleeding. Colonoscopy showed multiple, large (7– 10mm), flat, and elevated cherry-red colored vascular malformations (arteriovenousmalformations [AVM]) in a fernlike pattern in the cecum. After thorough inspection of the lesions we were able to identify the feeding vessel. We placed...

Congenital hepatic arterio-venous malformations (AVM) are rare vascular anomalies and have rarely been reported in the presence of congenital heart disease. The reported cases are mostly hemangiomas fed either by the hepatic artery itself or by one of its branches. We present two unique hepatic AVM cases in the presence of congenital heart defects in which the AVM was not fed by the hepatic art...