A: Image showing hyperplasia with active inflammation in the intimal indicated by red arrows – C4d positive, yellow arrows show the internal elastic membrane, red arrows show positivity to C4D polyclonal and blue arrows indicate hyperplasia, scale 5/100 mm, 10X. B: Image showing hyperplasia without active inflammation in the intima, yellow arrows show the internal elastic membrane and blue arrows indicate hyperplasia, scale 5/100 mm, 10X).