title: A case of Epstein-Barr virus-associated natural killer/T-cell lymphoma presenting as dermatomyositis: extranodal relapse after 7 years in remission.
abstract: A 56-year-old Japanese man was admitted to our hospital due to a fever of unknown origin. He had had a history of extranodal natural killer (NK)/T-cell lymphoma, nasal type, and had been in complete remission for 7 years until June 2003, when he developed high fever, eyelid swelling, and muscular weakness. Serum creatine kinase levels were elevated. Histopathological examination of skin and muscle biopsy specimens revealed subcutaneous infiltration of lymphoid cells positive for CD3, CD56, and Epstein-Barr virus-encoded small nuclear RNA-1. We report this unique case of Epstein-Barr virus-associated lymphoma mimicking dermatomyositis.
authors.affiliation: Department of Rheumatology, Numazu City Hospital, 550 Harunoki, Aza, Higashi-shiiji, Numazu, 410-0302, Japan. yhashimoto@ny.thn.ne.jp
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Hashimoto
authors.forename: Naoko
authors.initials: N
authors.lastname: Hashimoto
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Furuta
authors.forename: Takeaki
authors.initials: T
authors.lastname: Sugawara
authors.forename: Nobuharu
authors.initials: N
authors.lastname: Kosugi
authors.forename: Maki
authors.initials: M
authors.lastname: Hata
authors.forename: Masanobu
authors.initials: M
authors.lastname: Eguchi