Figure 2: CT at presentation revealed Fisher 4 SAH with prominent prepontine clot and hydrocephalus (a). First catheter angiogram was negative, including the posterior circulation (b). CT angiogram on day 27 (c, arrow) shows enhancement lateral to the basilar artery, that is confirmed on catheter angiography to be a basilar perforator dissecting aneurysm (d, arrow). Three overlapping LVIS Jr stents (Microvention Inc, Aliso Viejo, CA) were placed in the basilar artery (e, arrows) resulting in complete aneurysm occlusion (f)