During a 3 year period, 21 patients with spinal cord vascular malformations involving the anterior spinal artery were treated by embolization through this artery. Of four cases of extramedullary arteriovenous fistula, two patients embolized at an early stage showed excellent results, whereas results were mediocre in two patients who were paraplegic at embolization. Of 17 cases of intramedullary...

BACKGROUND AND PURPOSE A reliable quantitative technique for measuring arteriovenous (AV) shunt in vascular malformations is not currently available. Here, we evaluated the hypothesis that continuous arterial spin-labeled (CASL) perfusion MR imaging can be used to detect and measure AV shunt in patients with arteriovenous malformations (AVMs). MATERIALS AND METHODS CASL perfusion MR imaging w...

Arteriovenous malformations (AVMs) are the major cause of haemorrhagic stroke in young adults, but the causal factors leading to AVM formation are unknown. An important clue is provided by the familial human disease Hereditary Haemorrhagic Telangiectasia (HHT), which is characterised by multi-organ AVMs and bleeding. HHT is inherited in an autosomal dominant manner and most patients carry mutat...

OBJECTIVES Cerebral arteriovenous malformations (AVMs) harbor a network of abnormal vasculatures, namely the nidus between arterial and venous components. The pressure gradient between these two components results in abnormal high-velocity arteriovenous shunts flowing through the nidus and alternate intracranial hemodynamics. This study hypothesizes that the flow patterns of the circle of Willi...

BACKGROUND Arteriovenous malformations (AVMs) with vascular abnormalities, including aneurysms, have been reported frequently. However, the coexistence of AVM and unilateral moyamoya disease is rare. We report herein an AVM patient who presented with acute ischemic stroke with unilateral moyamoya disease and occlusion of the feeding artery. CASE REPORT A-41-year old man was admitted with sudd...

Abstract Objective Arteriovenous malformations (AVMs) are tangled masses of arteries and veins congenital origin. AVMs rare (~4.3% in the general population) symptomatic cases rarer still (0.1–1%). account for strokes 1–2% cases. We present case a 59-year-old, right-handed, Caucasian male, with nine years formal education, who was evaluated as an inpatient following ruptured AVM. Method Patient...

Radiosurgery of arteriovenous malformations (AVMs) is a challenging procedure. Accuracy of target volume contouring is one major issue to achieve AVM obliteration while avoiding disastrous complications due to suboptimal treatment. We describe a technique to improve the understanding of the complex AVM angioarchitecture by 3D prototyping of individual lesions. Arteriovenous malformations of ten...

Arteriovenous aneurysms may be congenital (arteriovenous malformation, AVM) or acquired (arteriovenous fistula, AVF). AVFs after a renal transplant biopsy are seldom, but well recognized, usually harmless complications [1]. Congenital AVMs are usually of the cirsoid (racemose) type [2], characterized by a tangle of tortuous vessels of small diameter, with multiple varix-like communications betw...

Our objective was to provide guidelines about the use of stereotactic radiosurgery in symptomatic patients with imaging-identified arteriovenous malformations (AVMs) of the brain. We reviewed evidence-based medicine and clinical experience with radiosurgery for AVM of the brain to develop guidelines and provide scientific foundation for patients and physicians. Major recommendations include the...

Pediatric glans penis malformations, especially arteriovenous malformations (AVM), are very rare. Herein, we report two rare cases. A 14-year-old boy attended our outpatient clinic with chief complaints of purple swelling and rapidly growing lesion on the glans penis. The lesion was excised surgically after physical and radiological evaluations. Pathology reported AVM and the patient is being f...