[Isolated stenosis of the popliteal artery after treatment with methysergide. An anatomopathologic study].

One case of isolate stenosis of the popliteal artery in a young woman is reported in this article. Since acid Methysergide maleate had been taken over a longer period, this lesion was placed into the nosological context of toxic arterial fibrodysplasia. Although such lesions usually recede at the end of treatment, the severity and abruptness of ischemia in this case led to operating the patient. This allowed an anatomopathological examination, which showed the diffusion of fibrosis into all layers of the arterial wall.