“…It is the most common connective tissue disorder in children, usually seen 1-3 weeks after an upper respiratory tract infection or drug ingestion. Characteristic signs of the disease are a purpuric rash, arthralgia, abdominal pain with vomiting, gastrointestinal bleeding and renal dysfunction Piette 1997). The skin lesions consist of palpable purpura, sometimes necrotising, on the legs and, rarely, on the trunk, which might be a predictive factor for renal involvement (Tancrede-Bohin et al 1997).…”