The Medical clinics of North America
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Polymyalgia rheumatica and temporal arteritis are a clinical syndrome and clinicopathologic entity, respectively. Polymyalgia rheumatica occurs more commonly than temporal arteritis, with approximately half of all patients with temporal arteritis having the polymyalgia rheumatica syndrome. ⋯ The etiology of both is unclear, although genetic, and potentially, environmental factors may play significant roles. Both conditions respond to corticosteroid therapy, but patients with temporal arteritis require significantly higher doses to control symptoms and to prevent blindness.
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The use of tissue culture substrates for immunofluorescence determinations of nuclear, cytoplasmic, and mitotic cell-related autoantibodies has resulted in the delineation of diverse new specificities, whose clinical correlates are now becoming apparent. This review details both major and minor autoantibody specificities, the status of knowledge regarding their target antigens, and the relation of these serologic systems to distinctive rheumatic disease syndromes.