Recurrent hemorrhage after coil embolization of an intracranial aneurysm in a 59-year-old woman (case #3).

(A and B) Basilar tip aneurysm recurring at 6 years after first coiling, treated via a second coiling procedure. Embolization via second coiling was evaluated angiographically as MRRC class Ⅲa, with a VER of 21.5%. (C) Digital subtraction angiography at 5 years after second coiling indicating a recurrent neck. (D) MRA at 6 years after second coiling, indicating enlargement of the recurrent neck. (E) Hemorrhage at 7 years after coiling, with angiography indicating the formation of a daughter sac.