<prompt> Normal platelet count is found inWiskott Aldrich syndromeHenoch schonlein purpuraImmune thrombocytopeniaDengue fever  <response>: Ref Robbins 9e p526_527 ;8e p666;7e p986-987 All other options have decreased platelet count except henoch schonlein purpura .though it has the name purpura ,but the platelet count in this condition is normal.The skin manifestations in HSP are due to small vessel vasculitis 