<prompt> Polyaeritis nodosa does not involve:Pulmonary aeryBronchial aeryRenal aeryCerebral aery  <response>: Polyaeritis nodosa PAN is a systemic vasculitis of small or medium-sized muscular aeries, typically involving renal and visceral vessels but sparing the pulmonary circulation. The most prominent morphologic feature of the affected aery is an area offibrinoid necrosis 