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HENOCH SCHOLEIN PURPURA

  • purpura in Henoch scholein purpura is due to vasculitis and not due to thrombocytopenia.
  • small and medium sized vessels involved.
  • usally seen in children (infact it is the most common small vessel vasculitis in children ).
  • vasculitis is caused by immune complex deposition.
  • most common antibody seen in these immune complexes is IgA(IgA levels are elevated.)
  • platelet count is normal
  • sr complement level is normal
 

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