This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the following disease is more common in patients with alfa 1 antitrypsin deficiency? 
Select and explain. 
A. Good pasteurs syndrome, B. Microscopic PAN, C. Wegeners granulamatosis, D. Churg -strauss syndrome
C: Wegeners granulamatosis
Answer: C: Wegeners granulamatosis 
Explanation: Alfa 1 antitrypsin is an inhibitor of proteinase 3. Antiproteinase antibodies are seen in Wegeners granulamatosis. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 2343