[Unusual muscular manifestations in a case of Horton's disease].

The authors report the case of a 66-year-old woman with temporal arteritis. The unusual muscular involvement consists in proximal muscle wasting, electromyographic changes and increased muscle enzyme levels. The improvement of these objective manifestations under steroid therapy allows to include them in the systemic spectrum of temporal anteritis. Attention is drawn to the infrequency of such objective manifestations published in the literature on temporal arteritis or polymyalgia rheumatica.