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Intermittent claudication of the lower extremities is a common symptom described in older patients with atherosclerotic peripheral arterial disease. Peripheral arterial disease due to atherosclerosis is known to be associated with a higher risk of myocardial infarction, stroke and all-cause mortality. However, if intermittent claudication appears in a younger group of patients or older patients in absence of traditional risk factors for atherosclerosis such as smoking, dyslipidemia, arterial hypertension and diabetes mellitus other causes than atherosclerosis must be considered. These conditions include vasculitides, fibromuscular dysplasia, cystic adventitial disease, excentric vascular compression by tumor, popliteal artery entrapment syndrome, trauma or dissection. Vasculitides present a heterogenous group of disorders characterized by inflammatory destruction of blood vessels. Although often not a leading symptom intermittent claudication could be a part of a clinical picture in giant-cell arteritis, Takayasu´s arteritis, Buerger´s disease, polyarteritis nodosa or Behçet disease. Limb claudication is usually of rapid onset, progressive and bilateral. Each of the mentioned vasculitides is specific in ethiology and clinical manifestation with a variable prognosis for the patient. Increased awareness of the presence of different causes of limb claudication and their early diagnosis with a prompt initiation of appropriate treatment may help to avoid clinical progression that can lead to vascular surgery or even limb loss (Ref. 37).

Vasculitides as a rare cause of intermittent claudication