[Spontaneous bilateral carotid-cavernous-fistula (author's transl)].

There is reported about the rare case of a spontaneous bilateral carotid-cavernous-fistula. We have to deal with a 61-aged woman with insignificant troubles taking a good-natured course. The bilateral carotid-cavernous-fistula-cases stated in the literature has got assembled, where it is remarkable that 60% of these cases occured spontaneously. In the contrary the spontaneous unilateral carotid-cavernous-fistulae are present in 16-23% of cases.