BACKGROUND AND IMPORTANCE The tendency of posterior fossa arteriovenous malformations (pfAVM) to develop associated aneurysms (AA) is a well-known phenomenon with an increased total risk of rupture. Most pfAVM and AA develop in the territory of the posterior inferior cerebellar artery while the involvement of the anterior inferior cerebellar artery (AICA) is extremely rare. We describe an unusu...

introdUCtion Pelvic arteriovenous malformations (AVM) are rare and may be congenital or acquired and commonly mimic more common disorders. We describe a young adult male with pulmonary complaints who was found to have acute renal failure, hydronephrosis, congestive heart failure and multiple midline pelvic varices secondary to pelvic AVMs. We report this case to alert physicians to the diverse ...

BACKGROUND We report an unusual case of acquired dural-pial arteriovenous malformation (AVM) following sinus thrombosis. CASE DESCRIPTION Initial angiography performed in a 39-year-old man showed thrombosis of the superior sagittal sinus (SSS) and the right transverse sinus (TS) but no vascular malformations. Follow-up angiography 29 months later revealed recanalization of the SSS and the TS,...

The purpose of this study was to correlate the angioarchitecture of brain arteriovenous malformations (AVM) with their clinical presentation. A total of 170 patients with AVM 78 males and 92 females, were studied. Univariate and multivariate analyses were conducted in order to test the associations between morphological features and clinical presentation. The most frequent clinical presentation...

INTRODUCTION Coronary Arteriovenous Malformations (AVM) can lead to various cardiovascular events. The severity of clinical manifestation depends on the degree of the malformation. The significance of major arterial shunt is that they can deprive the myocardium of the necessary amount of blood, leading to myocardial ischemia, and potentially tachycardia, left ventricular dilatation and heart fa...

The Onyx system has been well established in recent years as a very important material in the treatment of arteriovenous malformations (AVMs). When using the Onyx, it is essential to wait for the creation of a plug around the tip of the catheter, which enables the effective forward penetration of Onyx. Recent reports have shown that the introduction of a dimethyl sulfoxide compatible dual-lumen...

Abstract A full-term infant was noted to have a large, macular, pale-pink vascular birthmark across the left side of chest, extending upper arm. Three smaller irregular birthmarks on elbow, thigh and flank were noted, as an enlarged He had oxygen dependency shortly after birth for which he required admission neonatal unit. detailed history revealed that his father, paternal grandmother aunt sim...

In a 52-year-old woman, spinal arteriovenous malformation (AVM) has been associated with what has been known as Foix-Alajouanine syndrome. The pathophysiology of the AV fistula is probably related to increased venous pressure from the AVM plus thrombotic process. The most common initial symptoms are sensory disturbance, pain and leg weakness. Definitive diagnosis of spinal AVMs requires radiogr...

Intraosseous arteriovenous malformations (AVMs) in the head and neck region are uncommon. There are several types and they can have a wide range of clinical presentations. Depending on the blood flow through the AVM, the treatment may be challenging for the attending team and may lead to life-threatening hemorrhages. A clinical case report is presented. A 9-year-old girl, seen for gingival blee...

Activin receptor-like kinase 1 (ALK1) is an endothelial serine-threonine kinase receptor for bone morphogenetic proteins (BMPs) 9 and 10. Inactivating mutations in the ALK1 gene cause hereditary haemorrhagic telangiectasia type 2 (HHT2), a disabling disease characterized by excessive angiogenesis with arteriovenous malformations (AVMs). Here we show that inducible, endothelial-specific homozygo...