title: Oesophageal dilatation on high-resolution computed tomography scan of the lungs as a sign of scleroderma.
abstract: BACKGROUND
  Systemic sclerosis (SSc) is a generalised autoimmune disease that causes morbidity and reduced life expectancy. Recently, evidence has been accumulating that immunosuppressive treatment in an early stage of the disease could improve survival, enhancing the need for early diagnosis and regular evaluation of organ involvement. Among others, a high-resolution computer tomography (HRCT) scan of the chest is performed for the assessment of pulmonary involvement in SSc. The objective of this study is to evaluate the predictive value of oesophageal dilatation on the HRCT scan for the diagnosis of SSc.
  
  
  METHODS
  In total, 105 consecutive patients with scleroderma and 107 consecutive controls were included in this study. The first available scan for each patient and control was evaluated in random order and blinded for the diagnosis, by two independent radiologists, for oesophageal dilatation and interstitial lung disease.
  
  
  RESULTS
  The positive predictive value of oesophageal dilatation for the diagnosis of SSc was 83%. No significant correlation of oesophageal dilatation and interstitial lung disease was found in the patients with scleroderma or controls.
  
  
  CONCLUSIONS
  Oesophageal dilatation as visible on an HRCT scan of the chest may alert doctors to look for other signs or symptoms of SSc in these patients, enabling early diagnosis and specific treatment.
authors.affiliation: Department of Rheumatology, Radboud University Nijmegen Medical Centre, P.O.Box 9101, 6500 HB Nijmegen, The Netherlands. M.Vonk@reuma.umcn.nl
authors.forename: M C
authors.initials: MC
authors.lastname: Vonk
authors.forename: C E
authors.initials: CE
authors.lastname: van Die
authors.forename: M M
authors.initials: MM
authors.lastname: Snoeren
authors.forename: K J
authors.initials: KJ
authors.lastname: Bhansing
authors.forename: P L C M
authors.initials: PL
authors.lastname: van Riel
authors.forename: J
authors.initials: J
authors.lastname: Fransen
authors.forename: F H J
authors.initials: FH
authors.lastname: van den Hoogen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001466:Barium Sulfate; D016022:Case-Control Studies; D003287:Contrast Media; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging / Q000209:etiology; D004947:Esophagus / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D017563:Lung Diseases, Interstitial / Q000000981:diagnostic imaging / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012595:Scleroderma, Systemic / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate