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Granulomatosis with polyangiitis.

Yu Zhu1, Jiao Zhu1, Rui Luo2

  • 1Department of Otolaryngology,The Second Affiliated Hospital of Chongqing Medical University,Chongqing, People's Republic of China.

Idcases
|April 29, 2024
PubMed
Summary
This summary is machine-generated.

This case study highlights Granulomatosis with Polyangiitis (GPA), a rare autoimmune disease. Early diagnosis and treatment with rituximab and glucocorticoids led to rapid symptom resolution and improved CT findings.

Keywords:
Autoimmune diseaseGranulomatosis with polyangiitisRespiratory infection

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Area of Science:

  • Internal Medicine
  • Rheumatology
  • Pulmonology

Background:

  • Granulomatosis with Polyangiitis (GPA) is a rare autoimmune disorder characterized by inflammation of small and medium-sized blood vessels.
  • GPA can affect multiple organs, including the respiratory tract and kidneys, often presenting with non-specific symptoms.
  • Timely diagnosis and appropriate treatment are crucial for managing GPA and preventing irreversible organ damage.

Purpose of the Study:

  • To present a case of Granulomatosis with Polyangiitis (GPA) with prominent ear, nose, and throat (ENT) and pulmonary manifestations.
  • To emphasize the diagnostic challenges and the importance of considering GPA in patients with refractory respiratory symptoms and multi-organ involvement.
  • To illustrate the effectiveness of rituximab combined with glucocorticoids in treating GPA.

Main Methods:

  • A 30-year-old male patient presented with persistent nasal congestion, fever, shortness of breath, and significant weight loss.
  • Diagnostic workup included nasopharynx CT, chest CT, urinalysis, and nasopharyngeal biopsy.
  • Treatment involved rituximab and glucocorticoids, with subsequent monitoring of clinical symptoms and imaging.

Main Results:

  • Nasopharyngeal biopsy revealed small-to-medium vessel necrotizing vasculitis, meeting classification criteria for GPA despite negative ANCA.
  • The patient experienced rapid symptom resolution, including decreased shortness of breath and fever, within one week of GPA-specific treatment.
  • Chest CT showed improvement with decreased ground-glass opacities, and inflammatory markers (CRP, ESR) normalized.

Conclusions:

  • This case underscores the importance of considering GPA in the differential diagnosis of patients with refractory ENT and respiratory symptoms, even with negative ANCA.
  • Prompt initiation of treatment with rituximab and glucocorticoids can lead to significant clinical and radiological improvement in GPA.
  • Multidisciplinary collaboration is essential for the accurate diagnosis and effective management of GPA.