PT - JOURNAL ARTICLE AU - David Cordiner AU - Clair A Evans AU - John Morrice TI - HSP or not HSP… that is the question AID - 10.1136/bcr.03.2010.2792 DP - 2010 Jan 01 TA - BMJ Case Reports PG - bcr0320102792 VI - 2010 4099 - http://casereports.bmj.com/content/2010/bcr.03.2010.2792.short 4100 - http://casereports.bmj.com/content/2010/bcr.03.2010.2792.full AB - The authors report on the case of a 10-year-old girl who presented with a vasculitic process primarily involving the skin, joints and kidneys, which was initially presumed to be a variant of Henoch-Schonlein purpura. When the disease process behaved in a more aggressive way than expected, with the rapid onset of acute renal failure, further investigation revealed the underlying diagnosis to be that of Wegener's granulomatosis.