[Bronchial involvement disclosing Wegener's granulomatosis]

Area of Science:

• Pulmonology
• Rheumatology
• Pathology

Background:

• Wegener's granulomatosis (WG), now known as granulomatosis with polyangiitis (GPA), is a rare autoimmune vasculitis.
• WG typically affects the respiratory tract and kidneys.
• Uncommon initial presentations can complicate early diagnosis.

Observation:

• A case of WG is presented with an initial, isolated finding of endobronchial stenosis.
• This rare clinical presentation highlights diagnostic difficulties.

Findings:

• The primary challenge lies in differentiating this presentation from other pulmonary granulomas, specifically bronchocentric granulomatosis.
• Histological examination of lung tissue is essential for definitive diagnosis.

Implications:

• Emphasizes the importance of considering WG in cases of unexplained endobronchial stenosis.
• Highlights the diagnostic value of open lung biopsy for rare pulmonary conditions.
• Underscores the need for a comprehensive differential diagnosis in respiratory medicine.