Introduction 1 3 Case 1 1 Fig. 1 a arrows b arrow c  Case 2 2 Fig. 2 a arrow b  Case 3 3 Fig. 3 a arrow b  Discussion n 3 2 4 In the other patients, one with a very short arterial feeder of an AV shunt in an AVM and one with a side-wall pial fistula, the use of liquid embolic agents was not possible and controlled delivery of detachable coils to the venous side of the shunt was technically easy with complete occlusion of the fistula. This technique is helpful in shunts with a moderately dilated venous outflow tract in which placement of coils is possible. In conclusion, different types of high-flow AV shunts can safely be occluded with endovascular techniques tailored to the specific anatomical configuration of the shunt.