Objective. To describe asymptomatic delayed migration of a coil loop in a patient following successful coil embolization of an anterior communicating artery saccular aneurysm. Methods. A 24-year-old man with a ruptured anterior communicating artery saccular aneurysm underwent coil embolization with one helical ultrasoft coil. Results. A followup CT scan head and a cerebral angiogram one month f...

During the period from January 1975 to December 1988, a total of 28 among 215 cases or 13.0% with multiple aneurysms were seen in the Department of Neurosurgery, Hiroshima University. Classifying by sex, there were 17 males and 11 females with a mean age of 52 years. The number of aneurysms was four in 2 cases, three in 6 cases, and two in 20 cases. By location, there were 13 aneurysms in the a...

AIM Increasing use of surgical magnification for operations in the territory of the anterior choroidal artery (AChA) has created a need for detailed knowledge of their anatomical variations. The aim of the present study is to examine the anatomical variations of the AChAin patients operated via pterional approach. MATERIAL AND METHODS The origin and branching pattern of AChAs were observed in...

Anterior cerebral artery (ACA) is one of the two terminal branches of internal carotid artery that supplies orbitofrontal and medial hemispheric portions of the brain. ACA is topographically and angiograpically divided into a precommunicating (A1) and a postcommunicating (A2, also called as pericallosal artery) parts. An azygos (occurring singly) pericallosal artery in one of the most frequent ...

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Objective: The microsurgical anatomy of the anterior cerebral artery (ACA), anterior communicating artery (ACoA), distal anterior cerebral artery (DACA) and its branches is complex and is known for its frequent variations. The purpose of this study was to document the microsurgical anatomy of this region in Indian population. Methods: Ten anterior cerebral artery complexes from cadaveric brain ...

Holoprosencephaly Holoprosencephaly encompasses a variety of brain malformations and is thought to be a result of failure of cleavage of the prosencephalon into the diencephalon and telencephalon and/or stemming from a defect in the normal induction and patterning of the rostral neural tube, which normally occurs in the first 4 weeks after conception. We present a case of semilobar holoprosence...

In contrast to size, the association of morphological characteristics of intracranial aneurysms with rupture has not been established in a systematic manner. We present an analysis of the morphological variables that are associated with rupture in anterior communicating artery aneurysms to determine site-specific risk variables. One hundred and twenty-four anterior communicating artery aneurysm...