title: Dermatomyositis associated with autoimmune idiopathic thrombocytopenia and anti-Ku antibody.
abstract: We describe a case of dermatomyositis with concurrent clinical and laboratory features of idiopathic thrombocytopenia associated with anti-Ku antibody. A diagnosis of dermatomyositis was established by the characteristic skin changes together with a muscle biopsy. Scintigraphic studies indicated cardiac involvement. Autoimmune idiopathic thrombocytopenia (AITP) has been described in association with both systemic lupus erythematosus (SLE) and scleroderma, but there are few reports describing AITP associated with myositis. To our knowledge, this is the first report of a case of dermatomyositis associated with AITP and anti-Ku antibody.
authors.affiliation: Institute of Rheumatology, Tokyo Women's Medical University, 10-22 Kawada-cho, Shinjuku-ku, Tokyo 162-0054, Japan. hokamoto@ior.twmu.ac.jp
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Okamoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Soejima
authors.forename: Megumi
authors.initials: M
authors.lastname: Takeuchi
authors.forename: Mutsuto
authors.initials: M
authors.lastname: Tateishi
authors.forename: Chihiro
authors.initials: C
authors.lastname: Terai
authors.forename: Masako
authors.initials: M
authors.lastname: Hara
authors.forename: Terunobu
authors.initials: T
authors.lastname: Saito
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Kamatani