title: A multicentric, hyaline vascular variant of Castleman's disease associated with B cell lymphoma: a case report.
abstract: BACKGROUND
  Three histological variants (hyaline vascular, plasma cell, and mixed) and two clinical types (localized and multicentric) of Castleman's disease have been described. The risk of progression to lymphoma is higher in multicentric Castleman's disease and is associated with poorer outcomes and higher mortality rate. Multicentric Castleman's disease often requires systemic therapy. Complete resection of the involved node in localized Castleman's disease is curative, with no reported recurrences.
  
  
  METHODS
  We report a case of a 66-year-old female with systemic symptoms and bilateral cervical lymph nodes which were initially diagnosed as the hyaline vascular variant of Castleman's disease and two years later after the initial diagnosis she was confirmed to B cell lymphoma. Following the treatment with radiation therapy to the cervical area and combination chemotherapy complete response was achieved.
  
  
  CONCLUSIONS
  Although it has rarely been reported, the malignant potential of the Castleman's disease must be kept in mind.
authors.affiliation: Department of Hematology, Inonu University Faculty of Medicine, Malatya-Elazig Street, Malatya, 44069, Turkey. erkurtali@hotmail.com
authors.forename: Mehmet Ali
authors.initials: MA
authors.lastname: Erkurt
authors.forename: Ismet
authors.initials: I
authors.lastname: Aydogdu
authors.forename: Irfan
authors.initials: I
authors.lastname: Kuku
authors.forename: Emin
authors.initials: E
authors.lastname: Kaya
authors.forename: Bulent
authors.initials: B
authors.lastname: Mizrak
authors.forename: Yalcin
authors.initials: Y
authors.lastname: Basaran