“…According to the Radiology Review Manual 7 th edition 1 the rate of cases presenting with aneurysm of aCom at autopsy is 25% and by angiography with symptoms is 36% and the risk of bleeding is 70%. Ayman Z Ahmed et al 2 analyzed 15 cases that underwent both microsurgical clipping and endovascular coiling. The rate of mortality after clipping is 26.7% and after coiling is 6.7%.…”