Pediatrics The most common leukocytoclastic vasculitis affecting children is: A Takayasu disease. B Mucocutaneous lymph node syndrome. (Kawasaki disease). C Henoch Schonlein purpura. D Polyarteritis nodosa 💡 Explanation The most common leukocytoclastic vasculitis affecting children is: ✓ Correct Answer: C. Henoch Schonlein purpura.