A 36 year old male with Cavitatory Lung lesions, Sinusitis, Ulcers in the mouth. RBC casts in the urine can be seen. Diagnosis is: (A) Granulomatosis with polyganitis, (B) Eosinophilic with Polyangitis, (C) IgA Vasculitis, (D) Microscopic polyangitis
Answer is A. Wegener's also called Granulomatosis with polyangitis.