A 50 year old male presented with symptoms of cutaneous vasculitis, glomerulonephritis and synovitis. Which of the following investigations will be helpful in the diagnosis?
Essential mixed cryoglobulinemia: Formation of immune complexes (IgM -IgG) Development of renal lesions and involvement of joints (MPGN I and synovitis) Most cases have been associated with hepatitis C virus infection. Deposits of IgG-IgM complexes induce Cutaneous vasculitis Synovitis MPGN
P-ANCA
C-ANCA
Anti-HCV antibody
Anti-HAV antibody
Glomerulonephritis