Fig. 9.

A. A large aneurysm with a fetal type posterior cerebral artery (PCA) incorporated into the sac at the ICA posterior communicating artery (PComA) region.

B. After a Neuroform stent placement, coiling is performed with two catheters technique for saving the origin of the fetal type PCA (white and long arrows: markers of stent, short arrows: distal markers of two microcatheters).

C, D. The aneurysm sac is completely embolized with saving the origin (a long black arrow) of the fetal type PCA. A white arrow indicates distal markers of the deployed Neuroform stent and short arrows indicate proximal markers of two microcatheters.