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: Pathology
Poly arteritis nodosa does not involve 
Select and explain. 
A. Pulmonary artery, B. Bronchial artery, C. Renal artery, D. Cerebral artery
A: Pulmonary artery
Answer: A: Pulmonary artery 
Explanation: Polyarteritis nodosa (PAN) is a systemic vasculitis of small or medium sized muscular arteries, typically involving renal and visceral vessels but sparing the pulmonary circulation.      
P  A  N -----
* Pulmonary  artery not involved.
*P ANCA -negative