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Granulomatosis with polyangiitis: An atypical initial presentation.

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Journal of Translational Autoimmunity
|March 14, 2022
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Summary

A young man experienced severe respiratory failure due to Granulomatosis with Polyangiitis (GPA), a rare autoimmune disease. Prompt treatment with immunosuppressants and plasmapheresis led to clinical improvement, highlighting the importance of early diagnosis.

Keywords:
ANCAGranulomatosis with polyangiitisVasculitis

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Area of Science:

  • Rheumatology
  • Pulmonology
  • Nephrology

Background:

  • Granulomatosis with Polyangiitis (GPA) is a rare autoimmune vasculitis affecting small and medium blood vessels.
  • It typically involves the respiratory tract and kidneys, often associated with anti-neutrophil cytoplasm (ANCA) antibodies.
  • GPA predominantly affects middle-aged men, with a later age of onset.

Observation:

  • A 23-year-old male presented with arthralgia, fatigue, and hemoptysis.
  • Rapid clinical deterioration led to respiratory failure requiring mechanical ventilation.
  • Autoimmune workup revealed high titers of ANCA PR3 antibodies.

Findings:

  • Chest imaging demonstrated diffuse alveolar infiltrates and ground-glass opacities, indicative of alveolar hemorrhage.
  • Nasal sinus CT showed inflammatory changes.
  • Histology of nasal mucosa was inconclusive, but clinical presentation and serology confirmed GPA.

Implications:

  • This case highlights an aggressive, potentially fatal presentation of GPA with diffuse alveolar hemorrhage in a young adult.
  • Early diagnosis and aggressive immunosuppressive therapy, including plasmapheresis, are crucial for managing severe GPA.
  • The case underscores the importance of considering GPA in young patients with unexplained respiratory failure and systemic symptoms.