title: Polymyositis: an ongoing discussion about a disease entity.
abstract: Since its first description more than a century ago, there has been much debate about the diagnostic entity polymyositis. Because initial observations were of individuals with dermatomyositis, it appeared that polymyositis was not possible without skin lesions. Distinctive clinical and histologic features of polymyositis were not established until the late 20th century. The identification of inclusion body myositis as a distinct entity has further refined nosographic classification.
authors.affiliation: Department of Neurology, Sint Lucas Andreas Hospital, Jan Tooropstraat 164, 1061 AE Amsterdam, the Netherlands. i.bronner@slaz.nl
authors.forename: Irene M
authors.initials: IM
authors.lastname: Bronner
authors.forename: Wim H J P
authors.initials: WH
authors.lastname: Linssen
authors.forename: Marjon F G
authors.initials: MF
authors.lastname: van der Meulen
authors.forename: Jessica E
authors.initials: JE
authors.lastname: Hoogendijk
authors.forename: Marianne
authors.initials: M
authors.lastname: de Visser
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D049673:History, 20th Century; D006801:Humans; D018482:Muscle, Skeletal / Q000473:pathology; D017285:Polymyositis / Q000266:history* / Q000473:pathology / Q000503:physiopathology