• Systemic vasculitis characterized by a classic tetrad of nonthrombocytopenic palpable purpura, arthritis, gastrointestinal, and renal involvement

• The most common gastrointestinal complaint is abdominal pain

• The characteristic endoscopic findings are ulcers seen in the second portion of the duodenum

• Biopsies revealed a leukocytoclastic vasculitis in the skin and gastrointestinal tract

• Steroid therapy led to complete resolution of the symptoms.

• Prognosis depends on the level of kidney involvement