title: Regressing microaneurysms in 5 cases of hepatitis B virus related polyarteritis nodosa.
abstract: OBJECTIVE
  To investigate the angiographic evidence of polyarteritis nodosa (PAN) related to hepatitis B virus (HBV) infection.
  
  
  METHODS
  We reviewed retrospectively the medical files of 5 patients who had therapy for PAN.
  
  
  RESULTS
  Each patient showed dramatic regression or disappearance of the aneurysms and stenoses; this reflected the clinical course and remission obtained with treatment, but not the disappearance of HBV. When a patient was considered clinically cured, i.e., no signs of vasculitis for 18 mo after discontinuation of treatment, microaneurysms had disappeared on angiography.
  
  
  CONCLUSIONS
  From our experience and that reported by others, when clinical remission is achieved, arteriography is usually unnecessary because microaneurysms have disappeared or significantly regressed.
authors.affiliation: Department of Internal Medicine, Hôpital Avicenne, Université Paris-Nord, Bobigny, France.
authors.forename: C
authors.initials: C
authors.lastname: Darras-Joly
authors.forename: O
authors.initials: O
authors.lastname: Lortholary
authors.forename: P
authors.initials: P
authors.lastname: Cohen
authors.forename: M
authors.initials: M
authors.lastname: Brauner
authors.forename: L
authors.initials: L
authors.lastname: Guillevin
mesh_terms: D000328:Adult; D000783:Aneurysm / Q000000981:diagnostic imaging* / Q000821:virology; D000792:Angiography; D005260:Female; D006509:Hepatitis B / Q000150:complications*; D006515:Hepatitis B virus; D006801:Humans; D008297:Male; D008875:Middle Aged; D010488:Polyarteritis Nodosa / Q000000981:diagnostic imaging* / Q000821:virology; D012189:Retrospective Studies; D013997:Time Factors