Henoch-Schonlein purpura is characterized by the deposition of the following immunoglobulin around the vessels:: (A) IgM, (B) IgG, (C) IgA, (D) IgE
Answer is C. c. IgA(Ref: Nelson's 20/e p 1216-1217, Ghai 8/e p 632-633)Biopsy finding in HSP is deposition of IgA, specifically lgA1 in the affected tissue, by immunofluorescence, accompanied to a lesser extent by deposition of C3, fibrin & IgM.