نتایج جستجو برای: arteriovenous malformation
تعداد نتایج: 26285 فیلتر نتایج به سال:
Embolization of brain arteriovenous malformations (AVMs) with isobutyl 2-cyanoacrylate (IBCA) is an alternative to surgical treatment when dealing with large AVMs with multiple arterial feeders. The deposition of IBCA in the nidus of the AVM may produce an active and progressive thrombosis that may lead to complete occlusion of the nidus and/or to progressive thrombosis of the draining veins. F...
Renal arteriovenous malformations and fistula are an uncommon, underdiagnosed condition that can be asymptomatic. However, there is a real risk of rupture and severe bleeding. Imaging techniques have a critical role in planning the treatment. Arteriography is the gold standard but is invasive. Diagnostic selective arteriography can be followed by embolisation of the lesion during the same proce...
Vein of Galen abnormality is a rare congenital malformation of blood vessels of the brain and while often referred to as "Vein of Galen aneurysm" its is really not an aneurysm but usually an arteriovenous (AV) malformation. The following case report will be of interest to sonographers as it demonstrates early prenatal diagnosis of this intracranial vascular abnormality causing cardiac overload ...
Renal arteriovenous malformations are abnormal communications between the intrarenal arterial and venous systems. They are a rare cause of hematuria. Color Doppler ultrasonography, multislice CT angiography, and DSA are important tools for making the diagnosis. We describe the case of a 62-year-old man with renal arteriovenous malformation who presented with gross hematuria.
BACKGROUND AND PURPOSE The morphologic features of brain arteriovenous malformations differ between children and adults; therefore, our aim was to analyze various features of brain arteriovenous malformations to assess the risk of hemorrhage in children. MATERIALS AND METHODS We identified all consecutive children admitted to Beijing Tiantan Hospital for brain arteriovenous malformations betw...
The RASA1 gene encodes p120RASGAP, a multidomain cytoplasmic protein that acts as a negative regulator of the RAS signalling pathway. Heterozygous loss-of-function RASA1 mutations were identified in patients with Parkes Weber syndrome and multifocal capillary malformations. This syndrome is characterised by a capillary blush on an extremity, arteriovenous microfistulas, and bony and soft tissue...
A 20-year-old man with right bundle branch block in recorded ECG was referred to our department. His physical examination was unremarkable. Transthoracic echocardiography showed a severe hypertrophy of the interventricular septum (22 mm)which contained multiple echo-free spaces of the vascular nature. A flow pattern suggestive to a coronary artery fistula into the left ventricle was recorded. T...
Cerebral arteriovenous malformation with aneurysmal dilatation of the vein of Galen often presents in the neonatal period with congestive heart failure. Five cases of galenic arteriovenous malformations diagnosed primarily by sonography are presented together with their angiographic and computed tomographic findings. A midline cystic structure posterior to the third ventricle with dilated strai...
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