Abstract
Patients with anterior cerebral artery (ACA) and anterior communicating artery (AComA) aneurysms make up one third of all those presenting with subarachnoid hemorrhage (SAH). In autopsy material, the incidence is lower, perhaps because the small lesion is not recognized as easily on gross dissections as it is on good quality angiograms. Aneurysms in this location may be sub-classified according to their projection in relationship to the A1, A2, and AComA. Yasargil1 described six subsets: an anterior projection, a superior projection, a posterior projection, a posterior inferior projection, an inferior projection, and a complex aneurysm in which the AComA becomes part of the aneurysmal mass. Nathal et al.2 classified aneurysms into three types, based on their projection. Roughly one-third project directly posteriorly from the anterior communicating (type 1), 58.4% project anteriorly and superior to the A2 vessels (type 2), and, in type 3, the aneurysm projects inferiorly and anterior to the A2 branches.
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© 1994 Springer-Verlag New York, Inc.
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Smith, R.R., Zubkov, Y.N., Tarassoli, Y. (1994). Anterior Cerebral and Anterior Communicating Artery Aneurysms. In: Cerebral Aneurysms. Springer, New York, NY. https://doi.org/10.1007/978-1-4613-9532-4_10
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DOI: https://doi.org/10.1007/978-1-4613-9532-4_10
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