PMC5116358_01
Creatinine and BUN trend during hospitalization. The large arrows reflect the days he had hemodialysis.
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fig1
Primary workup for the acute kidney injury included a creatinine and blood urea nitrogen (BUN) trend as shown in Figure 1 (initial creatinine of 6.1 mg/dL and BUN of 67 mg/dL).
Renal biopsy revealing crescentic glomerulonephritis (GN) pauci-immune type suggestive of MPO. H&E stain and trichrome stain.
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fig2
Renal biopsy on hospital day 5 showed crescentic glomerulonephritis (GN) pauci-immune type suggestive of MPO-AAV as shown in Figures 2(a) and 2(b). The biopsy in Figures 2(a) and 2(b) shows sclerotic glomeruli with focal fibrinoid necrosis and cellular crescent formation.