[Spontaneous craniocervical dissection].

Spontaneous craniocervical dissection is one of the main causes of stroke in juvenile and middle-aged patients. It is caused by intramural hematoma which may result in stenosis or even occlusion of the artery. Clinical manifestation varies from local pain to ischemic complications. The imaging modality of choice is magnetic resonance imaging (MRI) which is able to detect all characteristic signs of dissection. Intramural hematoma is detected with thin slice fat-saturated 3D black-blood images. However, with the use of special imaging techniques, questionable findings can be clarified and especially the more difficult to detect intradural dissection can be accurately diagnosed. Acute treatment depends on the severity of neurological symptoms and their duration. Factors like the location of the dissection, cerebral infarction or hemorrhage influence the choice of medication for primary and secondary prophylaxis. Resorption of the intramural hematoma often leads to spontaneous recanalization within a few months.