• Affects
  • In cases where a cause can be determined, medications and infectious pathogens are most common in adults, while IgA vasculitis (Henoch-Schönlein purpura) frequently affects children. (wikipedia.org)
  • inflammation
  • And so, if we break it down, we can see poly means many, arter refers to the arteries, and itis is inflammation, just like any vasculitis you see some inflammation, and nodosa means nodular. (khanacademy.org)
  • purpura
  • For example, if the vasculitis is a manifestation of Henoch-Schönlein purpura, individuals may also experience abdominal pain or blood in the urine. (wikipedia.org)