Background: Ruptured wide-neck aneurysms of the basilar apex are usually challenging to treat, and microsurgical exposure may require sacrificing of the posterior communicating artery (PCoA). Therefore, the fetal-type PCoA increases the risk of ischemic injury. Purpose: This study aimed to report the retrograde technique of horizontal stenting through the PCoA using a Solitaire AB stent. Methods: A self-expandable stent was deployed from one posterior cerebral artery to the opposite, across the neck of a ruptured wide-neck basilar apex aneurysm. Results: The technique allowed successful aneurysm embolization with coils in a 53-year-old woman. Conclusion: Different from clipping, where the fetal-type PCoA may pose an obstacle, in endovascular treatment, the Solitaire AB stent provides an alternative route to the aneurysm. It is easy to navigate, being fully retrievable and repositionable, which enables accurate deployment.