Atteinte artérielle périphérique dans la maladie de Horton : comment différencier athérome et inflammation ?

Giant cell arteritis (Horton's disease) is an inflammatory arteritis involving medium and large diameter arteries. The disease typically occurs in patients aged 50 years or more who may otherwise have atherothrombotic lesions. It is sometimes difficult to determine whether an arterial stenosis arises from an inflammatory or an atherothrombotic mechanism in a patient with giant cell arteritis. Therefore we describe, through a case report, the clinical features and complementary investigation data helpful for distinguishing between these two entities.