title: Polymyositis, not polymyalgia rheumatica.
abstract: The distinction between polymyalgia rheumatica and polymyositis is important for treatment and prognosis. Four elderly patients were diagnosed and treated for polymyalgia: raised creatine kinase led to muscle biopsy and a diagnosis of polymyositis.
authors.affiliation: Department of Rheumatology, Northwick Park Hospital, Harrow, Middlesex.
authors.forename: N D
authors.initials: ND
authors.lastname: Hopkinson
authors.forename: D J
authors.initials: DJ
authors.lastname: Shawe
authors.forename: J M
authors.initials: JM
authors.lastname: Gumpel
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D009220:Myositis / Q000175:diagnosis*; D011111:Polymyalgia Rheumatica / Q000175:diagnosis*