title: Presumed isolated inflammation of the superior oblique muscle in idiopathic orbital myositis.
abstract: OBJECTIVE
  To describe isolated involvement of the superior oblique muscle in association with idiopathic orbital myositis.
  
  
  METHODS
  A case report with review of the literature.
  
  
  METHODS
  A 57-year-old man with acquired strabismus participated.
  
  
  METHODS
  Oral steroid therapy was administered.
  
  
  METHODS
  Clinical and radiographic features before and after treatment were measured.
  
  
  RESULTS
  Computed tomographic scanning showed isolated enlargement of the superior oblique muscle consistent with orbital myositis. Clinical and radiographic abnormalities quickly improved after oral steroid therapy.
  
  
  CONCLUSIONS
  Orbital pseudotumor may present as a myositis isolated to the superior oblique muscle. This extremely rare condition has been reported in only three patients, each of whom lacked early diagnosis or treatment. Early recognition may improve chances for a successful clinical outcome.
authors.affiliation: Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, USA.
authors.forename: D B
authors.initials: DB
authors.lastname: Stidham
authors.forename: N
authors.initials: N
authors.lastname: Sondhi
authors.forename: D
authors.initials: D
authors.lastname: Plager
authors.forename: E
authors.initials: E
authors.lastname: Helveston
mesh_terms: D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D009801:Oculomotor Muscles / Q000000981:diagnostic imaging* / Q000187:drug effects; D016727:Orbital Pseudotumor / Q000000981:diagnostic imaging* / Q000188:drug therapy; D011241:Prednisone / Q000627:therapeutic use; D013285:Strabismus / Q000150:complications; D014057:Tomography, X-Ray Computed; D014792:Visual Acuity
chemical_list: D011241:Prednisone