Recurrent hemorrhage after coil embolization of an intracranial aneurysm in a 64-year-old woman (case #2).

(A and B) Posterior communicating artery aneurysm embolized using coils. Initial embolization was angiographically graded as MRRC class Ⅱ, with a VER of 24.9%. (C) MRA at 2 years after coiling indicated a remnant neck. (D) MRA at 5 years after coiling indicated enlargement of the recurrent neck. (E) Re-hemorrhage at 7 years after coiling, with angiography indicating the formation of a daughter sac.