[Spontaneous dissection of the left vertebral artery in a young woman. A report and the diagnostic considerations of a case].

A case of spontaneous left vertebral artery dissection occurred in a 45-year-old woman is reported. The most important epidemiological, etiological, anatomopathological and clinical features of this disease are described. The authors, starting from the case observed, point out the usefulness of noninvasive diagnostic techniques such as duplex scanning, color duplex scanning and magnetic resonance angiography for the detection, monitoring, and follow-up of this pathological condition.