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Idiopathic inflammatory myopathy with diffuse alveolar damage.

C-S Lee1, T-L Chen, C-Y Tzen

  • 1Mackay Memorial Hospital, Taipei, Taiwan. amy@ms2.mmh.org.tw

Clinical Rheumatology
|September 12, 2002
PubMed
Summary

Interstitial lung disease (ILD) in myositis patients can be severe. Diffuse alveolar damage (DAD) is a rare but fatal pathological pattern in idiopathic inflammatory myopathy (IIM) patients, even with treatment.

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Area of Science:

  • Pulmonology
  • Rheumatology
  • Pathology

Background:

  • Interstitial lung disease (ILD) is a known complication in patients with myositis, with prevalence estimates varying widely.
  • The pathological pattern of diffuse alveolar damage (DAD) is infrequently reported in association with idiopathic inflammatory myopathy (IIM).

Observation:

  • This study reports on five patients diagnosed with IIM presenting with respiratory failure.
  • Four of these patients underwent open lung biopsy, confirming the pathological diagnosis of diffuse alveolar damage (DAD).

Findings:

  • All five patients with IIM and DAD experienced respiratory failure.
  • Despite aggressive immunosuppressive therapy, all reported patients with IIM and DAD ultimately succumbed to the condition.

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Implications:

  • Diffuse alveolar damage (DAD) represents a critical and often fatal complication in patients with idiopathic inflammatory myopathy (IIM).
  • The findings underscore the poor prognosis associated with DAD in IIM, highlighting the need for further research into effective treatment strategies.