Figure 1A: Nodular mesangial expansion due to deposition of accellular amorphous material. No endocapillary or mesangial hypercellularity seen. Surrounding Tubulointerstitium is unremarkable
Figure 1B: Deposits over the glomeruli and blood vessels are silver negative. Bowmans capsule and TBM are silver positive, taking up a black colour

Figure 2A: Deposits in the mesangium and over blood vessels take a deep orange colour on Congo red stain when viewed under white light
Figure 2B: Amyloid deposits are birefringent, with an apple green colour in the same field