<prompt> FALSE statement about polyaeritis nodosa PAN is:It is a necrotizing vasculitis of small and medium-sized muscular aeriesInvolvement of the renal and visceral aeries is characteristic.PAN does not involve pulmonary aeries and bronchial vesselsGranulomas, significant eosinophilia, and are not observed.  <response>: Polyaeritis nodosa PAN It is a multisystem, necrotizing vasculitis of small and medium-sized muscular aeries. Involvement of the renal and visceral aeries is characteristic. PAN does not involve pulmonary aeries, although bronchial vessels may be involved; Granulomas, significant eosinophilia, and an allergic diathesis are not observed. Ref: Harrisons principles of internal medicine, 18th edition, Page: 2794. 