PURPOSE To describe the technique and results of percutaneous puncture of the external carotid artery or one of its branches distal to a surgical arterial ligation. METHODS Forty-three patients underwent 64 embolization attempts by percutaneous arterial puncture distal to an external carotid artery ligation. The punctured arteries were the trunk of the external carotid artery in 31 patients, ...

We present a case in which an arterial rupture occurring during embolization of an arteriovenous malformation of the left occipital lobe with a flow-directed microcatheter, was successfully sealed with a small amount of glue. We navigated a 1.8-Fr Magic catheter through the posterior cerebral artery, and during superselective test injection, extravasation was observed at the parieto-occipital b...

Copyright © 2007 Massachusetts Medical Society. A 51-year-old woman presents with a generalized tonic–clonic seizure. After a brief postictal period, she recovers fully and does not report headache or other neurologic symptoms. She takes no medications and her medical history is unremarkable. Computed tomography of the head suggests a right occipital arteriovenous malformation, without evidence...

Atlas is the first cervical vertebra. It is ring shaped, without a body. It has an anterior arch, a posterior arch and two lateral masses. The lateral masses articulate with the occipital condyles to form ellipsoid type of synovial joints. The anterior arch articulates with the dens of the axis vertebra to form a pivot type of synovial joint. The posterior arch is grooved by the third part of t...

Copyright © 2007 Massachusetts Medical Society. A 51-year-old woman presents with a generalized tonic–clonic seizure. After a brief postictal period, she recovers fully and does not report headache or other neurologic symptoms. She takes no medications and her medical history is unremarkable. Computed tomography of the head suggests a right occipital arteriovenous malformation, without evidence...

A 58-year-old man with coronary disease presented with headache, confusion, and vision loss. On examination, he had retrograde and anterograde amnesia, superior homonymous quadrantanopias, and could not identify colors. MRI showed bilateral occipital infarcts involving the parahippocampal and lingual gyri (figure 1). CT angiography revealed a hypoplastic vertebrobasilar circulation, with a pers...