[A case of cerebral stroke caused by a spontaneous dissection of the internal carotid with rapid resolution].

We describe a case of acute stroke due to a spontaneous carotid dissection. Doppler sonography performed 12 hours after stroke and repeated in the following days suggested a dissection of the right internal carotid artery, then confirmed by angiography. The dissection could be unrecognized because of a complete normalization of the flow within the fifth day. This case shows the importance of performing an early ultrasonic examination in stroke patients.