Original ArticlesComplex Aneurysm of Junction of Posterior Cerebral and Posterior Communicating Artery: A Case Report and Review of Treatment OptionsPavlisa, Goran MD, PhD*; Pavlisa, Gordana MD, PhD†Author Information *Clinical Institute of Radiology, University Hospital Center Zagreb, University of Zagreb School of Medicine, Kispaticeva, Zagreb, Croatia †Intensive Care Unit, Special Hospital for Pulmonary Diseases, Rockefellerova, Zagreb, Croatia There were no grants involved in this study. The authors declare no conflict of interest. Reprints: Goran Pavlisa, MD, PhD Clinical Institute of Radiology, University Hospital Center Zagreb, University of Zagreb School of Medicine, Kispaticeva 12, 10000 Zagreb, Croatia (e-mail: email@example.com). Neurosurgery Quarterly: August 2011 - Volume 21 - Issue 3 - p 163-167 doi: 10.1097/WNQ.0b013e318229c705 Buy Metrics Abstract Intracranial aneurysms with a wide neck and incorporated arterial branches remain difficult to treat, despite the advances of techniques and materials used. If such a complex aneurysm arises in posterior circulation, a microsurgical procedure may be associated with high risk of complications, and the aneurysm is usually more suitable for endovascular treatment with neck remodeling by a balloon or a stent. We present the use of neck remodeling by microcatheter and microguidewire in a patient with a wide-neck aneurysm that involved the junction of left posterior communicating artery and a fetal-type posterior cerebral artery. This technique may be useful in cases with complicated anatomy where the traditional use of stent or a balloon carries a high risk of aneurysm perforation due to the acute angle of vessels at the aneurysm neck. © 2011 Lippincott Williams & Wilkins, Inc.