PURPOSE Previous reports of embolization of cerebral arteriovenous malformations (AVMs) have evaluated the technique as adjunctive therapy prior to surgery or radiosurgery; our aim is to assess the role of embolization following radiosurgery. PATIENTS Six patients previously treated with radiosurgery and showing no response as judged by cerebral angiography were embolized 24 to 55 months (mea...

The complete or partial spontaneous regression of large arteriovenous malformations (AVM) is very rare [1-5]. In most cases, a hemorrhagic event or surgical manipulation will have contributed to the thrombosis of the AVM [2, 3]. We report here a patient with large bilateral basal ganglia AVMs who presented with headaches. She was neurologically intact and has remained so for 1 0 years. The pati...

Cobb syndrome is a rare entity characterized by cutaneous vascular lesions and arteriovenous malformations in the spine, both in the same metamere. This syndrome is also known as cutaneous vertebral medullary angiomatosis, cutaneomeningospinal angiomatosis, and spinal arterial metameric disorder. We report the case of a male infant diagnosed with Cobb syndrome who was treated surgically. The pr...

Large arteriovenous malformations (AVMs) of the head and neck present a treatment challenge. A 38-year-old woman presented with a large intraoral bleed from longstanding AVMs of the left infratemporal fossa and the right tongue, despite 10 prior surgeries and embolizations. She was treated with stereotactic body radiotherapy with a dose of 24 Gy in three weekly fractions. Four years later, she ...

A 21-year-old male presented with visual disturbance followed by severe headache. Computed tomography showed right thalamic hemorrhage entering the right lateral ventricle. Cerebral angiography revealed bilateral symmetrical arteriovenous malformations (AVMs) fed by the lenticulostriate, anterior choroidal, and lateral posterior choroidal arteries and draining into the vein of Galen. Partial re...

Vascular anomalies are categorized into vascular tumours or vascular malformations on the basis of clinical features and histopathology. The literature regarding high flow arteriovenous malformations of the auricle is rare. A case of a patient clinically diagnosed with an arteriovenous malformation of the external ear and was managed with preoperative embolization, surgical excision and reconst...

BACKGROUND AND OBJECTIVES Subarachnoid hemorrhage (SAH) during pregnancy is a rare event, and about half the cases are due to arteriovenous malformations (AVM). The authors describe the anesthetic approach of a 39 week pregnant patient scheduled for cesarean section, with a history of SAH due to AVM at 22 week gestation. CASE REPORT 39 week pregnant patient, healthy prior to pregnancy, with a...

Arteriovenous malformations (AVMs) commonly present with seizures and hemorrhage. Hydrocephalus associated with an unruptured AVM in an adult patient is exceedingly rare. A 37-year-old male patient presented with total visual loss in his right eye and severe impairment in his left eye. His evaluation showed an unruptured right frontal AVM and bilaterally dilated lateral ventricles. The major dr...

BACKGROUND AND PURPOSE Unenhanced time-resolved spin-labeled magnetic resonance angiography enables hemodynamic quantification in arteriovenous malformations (AVMs). Our purpose was to identify quantitative parameters that discriminate among different AVM components and to relate hemodynamic patterns with rupture risk. METHODS Sixteen patients presenting with AVMs (7 women, 9 men; mean age 37...

Cerebral arteriovenous malformations (AVMs) are formed from a vascular plexus of direct arterial-venous connections that progressively dilate, making them prone to rupture. They are frequently asymptomatic and often remain undiagnosed until they present with associated symptoms of headaches, seizures, neurological deficits, or hemorrhages. Occurrence of headache during pregnancy and labor is as...