title: Cerebrospinal fluid and therapy of isolated angiitis of the central nervous system.
abstract: BACKGROUND
  Serial cerebral angiograms, computed tomography, and magnetic resonance imaging are among the proposed methods for monitoring disease activity and response to therapy in isolated angiitis of the central nervous system. Cerebrospinal fluid has not proved to be useful in monitoring clinical course.
  
  
  METHODS
  We describe a 45-year-old man with histological diagnosis of isolated angiitis of the central nervous system that was treated with prednisone plus azathioprine and monitored for 2 years. Samples of the cerebrospinal fluid were obtained for cytological and routine chemical examination, as well as albumin and immunoglobulin content. Before treatment, cerebrospinal fluid showed marked plasmatic transudation of albumin and intrathecal synthesis of immunoglobulins. During the first year of immunosuppression no events were noticed, and the previously abnormal aspects of the cerebrospinal fluid showed improvement. During the weaning of azathioprine, a new stroke occurred in conjunction with a marked deterioration of cerebrospinal fluid parameters. Immunosuppression was resumed at previous levels, and during the following year no further events occurred. Once again, abnormal cerebrospinal fluid values improved significantly.
  
  
  CONCLUSIONS
  We report a case of isolated angiitis of the central nervous system in which the serial cerebrospinal fluid examinations (albumin and immunoglobulin content) showed a close correlation with clinical course. This method may be useful in monitoring response to therapy.
authors.affiliation: Department of Neurology, Santa Maria Hospital, Lisbon, Portugal.
authors.forename: V
authors.initials: V
authors.lastname: Oliveira
authors.forename: P
authors.initials: P
authors.lastname: Póvoa
authors.forename: A
authors.initials: A
authors.lastname: Costa
authors.forename: J
authors.initials: J
authors.lastname: Ducla-Soares
mesh_terms: D000418:Albumins / Q000134:cerebrospinal fluid; D001379:Azathioprine / Q000627:therapeutic use; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D002490:Central Nervous System / Q000098:blood supply* / Q000473:pathology; D006801:Humans; D007136:Immunoglobulins / Q000134:cerebrospinal fluid; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D011241:Prednisone / Q000627:therapeutic use; D014057:Tomography, X-Ray Computed; D014657:Vasculitis / Q000134:cerebrospinal fluid* / Q000188:drug therapy / Q000473:pathology
chemical_list: D000418:Albumins; D007136:Immunoglobulins; D001379:Azathioprine; D011241:Prednisone