Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs41016-019-0161-z/MediaObjects/41016_2019_161_Fig3_HTML.png)
Intraoperative and postoperative images. a The nidus and dilated drainers in the left upper cerebellar hemisphere are shown (arrow). b The distal posterior inferior cerebellar artery aneurysm(DPICAAn) is shown (large arrow). The proximal part of the right PICA is also indicated (small arrow). c The operative view after neck clipping of the DPICAAn (arrow). d The postoperative digital subtraction angiography shows the disappearance of the aneurysm and the cerebellar AVM