endoscopic finding in Henoch–Schönlein purpura Henoch–Schönlein purpura is a systemic vasculitis that presents with palpable purpura, abdominal pain, arthritis, and hematuria [1]. The initial clinical symptom of the characteristic purpura makes diagnosis easy. However, the disease is often under-recognized in the 10%–15% of patients in whom gastrointestinal symptoms precede the cutaneous lesion...
