A 5 year-old child presents with non-utatiening macules and pappules on the skin. Skin biopsy revealed a perivascular IgA deposition. Which of the following is the most likely diagnosis?
Henoch Shonlein purpura
Wegener's granulomatosis
Kawasaki disease
Drug-induced vasculitis
Ans. a. Henoch-Shonlein purpura (Ref Harrison 19/e p2100, 18/e p2797)Presence of non-blanching palpable purpura (vasculitis of skin) and colicky abdominal pain (vasculitis of gastrointestinal tract) in a five-year-old child together with evidence of IgA deposition in immune complexes suggests the diagnosis of Henoch Scholein Purpura