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Legionnaires' disease in London.

Polymyositis in all these three patients was excluded by normal findings on creatine phosphokinase estimation, muscle biopsies, and electromyograms. Our cases suggest that polymyalgia rheumatica, like polymyositis, should be regarded as a marker of malignancy. We agree with Dr Huskisson and his colleagues that poor response of polymyalgia rheumatica to an adequate dose of corticosteroids should alert one to the possibility of an occult neoplasm. FELIX BRUCKNER P J HACKETT