A patient presents with symptoms of cough, hemoptysis, and glomerulonephritis. His C-ANCA levels in serum were found to be raised. The most likely diagnosis is: (A) Goodpasteur's syndrome, (B) Classic polyaeritis nodosa, (C) Wegener's granulomatosis, (D) Kawasaki syndrome
Answer is C. Renal and pulmonary symptoms with positive c-ANCA suggest the diagnosis of Wegener&;s glomerulonephritis.The clinical syndrome of Wegner granulomatosis may be very similar to classical PAN or microscopic polyangiitis.