Spontaneous healing of cerebral aneurysm at the beginning of left posterior inferior cerebellar artery (PICA). Case report.

We present the clinical and neuroradiological features of a ruptured aneurysm at the beginning of the left PICA suffering from subarachnoid hemorrhage (SAH). The young patient refused surgery, endovascular treatment and also follow-up. After 4 and 5 years she repeated the left vertebral angiography that showed a spontaneous thrombosis of the aneurysm. After 8 years MR angiogram images confirmed the total obliteration of the aneurysm.