Horton giant cell arteritis of the legs. Report of a case.

Horton giant cell arteritis of the legs is a very rare and unusual occurrence. A very interesting case of acute ischemia of the right leg in a 51-year-old woman treated with emergency thromboendarterectomy is described. Histological findings led to the diagnosis of Horton giant cell arteritis and the patient was submitted to steroid and vascular therapy. Good results were obtained and follow-up after five years confirms the good general condition of the patient.