A patient died after therapeutic bucrylate embolization and resection of a right occipital arteriovenous malformation, which received significant blood supply from the right posterior cerebral artery. At autopsy, there was marked diffuse neuron loss and gliosis in all cell layers of the right hippocampus--pathology which we hypothesize was secondary to a 'steal' of blood from this structure int...

Transarterial embolization in the external carotid artery (ECA) territory has a major role in the endovascular management of epistaxis, skull base tumors, and dural arteriovenous fistulas. Knowledge of the potential anastomotic routes, identification of the cranial nerve supply from the ECA, and the proper choice of embolic material are crucial to help the interventionalist avoid neurologic com...

BACKGROUND AND PURPOSE Although cardiac embolism has been shown to be the leading stroke mechanism of posterior cerebral artery (PCA) territory infarction, intrinsic PCA atherosclerotic disease may play a more important role in regions where intracranial diseases are prevalent. We aimed to assess the etiologies and stroke pattern of PCA territory infarction in a Korean population. METHOD We r...

OBJECTIVE To describe the microsurgical anatomy, branches, and anatomic relationships of the posterior cerebral artery (PCA) represented in three-dimensional images. METHODS Seventy hemispheres of 35 brain specimens were studied. They were previously injected with red silicone and fixed in 10% formalin for at least 40 days. Four of the studied specimens were frozen at -10° to -15 °C for 14 da...

This study presents a case of a 15-year-old boy who had a right vertebral artery dissection with distal embolization from repeated trauma from an occipital bony spicule. The authors hypothesize that this bony spicule was contacting the left vertebral artery during head rotation, resulting in trauma to the vessel and formation of emboli which then showered distally, causing strokes in the poster...

Variations in the branching pattern of the external carotid artery (ECA) are well known and documented. The variation in the present case was compared with those reported before. An anomalous unilateral variation in the branching pattern of the left ECA was observed in a male embalmed cadaver. In this case, the ECA gives a direct branch directly to the submandibular salivary gland, a thyrolingu...

Tomographic images of cerebral blood flow (CBF) and oxygen extraction fraction (OEF) using the 15O continuous inhalation technique, and positron emission tomography, were obtained from a patient with cerebral ischemia distal to an occluded left internal carotid artery. There was a focal mismatch between CBF and oxygen metabolism in the brain supplied by the middle cerebral artery where CBF was ...

Case Reversible cerebral vasoconstriction syndrome (RCVS) is an increasingly recognized and important cause of thunderclap headache. Delays in diagnosis may cause deterioration of symptoms and concomitant unnecessary investigations. However, the diagnosis of RCVS in the acute stage remains difficult.A 41-year-old man was admitted to the emergency department for severe, recurrent occipital heada...