Wegener's granulomatosis commonly presents with sinusitis and nasal crusting, reflecting involvement of which anatomical region?

Wegener's granulomatosis commonly presents with sinusitis and nasal crusting, reflecting involvement of which anatomical region?

• A. Renal parenchyma
• B. Upper respiratory tract
• C. Lower respiratory tract
• D. Gastrointestinal tract

Answer: (B)

Sinusitis with nasal crusting signals disease of the nasal passages and paranasal sinuses, which are part of the upper respiratory tract. In granulomatosis with polyangiitis, the mucosa of the upper airway is commonly affected by necrotizing granulomatous inflammation and vasculitis, producing symptoms like chronic sinusitis, crusting, and sometimes septal perforation. While the condition can also involve the lungs (lower respiratory tract) and kidneys (renal parenchyma), the nasal and sinus involvement specifically points to the upper airway region.

Sinusitis with nasal crusting signals disease of the nasal passages and paranasal sinuses, which are part of the upper respiratory tract. In granulomatosis with polyangiitis, the mucosa of the upper airway is commonly affected by necrotizing granulomatous inflammation and vasculitis, producing symptoms like chronic sinusitis, crusting, and sometimes septal perforation. While the condition can also involve the lungs (lower respiratory tract) and kidneys (renal parenchyma), the nasal and sinus involvement specifically points to the upper airway region.