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Updated: Jun 20, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Surgical nuances of giant paraclinoid aneurysms
Eberval Gadelha Figueiredo1, Wagner Malagó Tavares, Albert L Rhoton
1Division of Neurological Surgery, School of Medicine, University of São Paulo, Rua Oscar Freire, 1399, AP 171, CEP 05409-010, São Paulo, SP, Brazil. ebgadelha@yahoo.com
Abstract:
Paraclinoid aneurysms constitute formidable surgical challenge. The complex surgical anatomy and several factors such as size and projection of the lesion, choice of the surgical approach, relationships between the aneurysm and perforator vessels, site of proximal control, and potential improvement or worsening of visual symptoms account for these difficulties. In such complex cases, surgical nuances frequently determine the final outcome. In this paper, the authors present a comprehensive review of the tricky regional anatomy and describe the operative nuances one of the senior authors (E. dO.) has used to operate on these complex lesions.
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