Diagnostic Accuracy of Direct Immunofluorescence Test on Paraffin-Embedded Blocks in Comparison with Frozen Section Blocks in Renal Biopsies

<div>False-positive IgM deposition. The leftover serum will often be visible on paraffin immunofluorescence in the glomerular capillaries, which is not generally visible in standard immunofluorescence sections from frozen tissue.</div>

International Journal of Nephrology

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Figure 4

Figure 4: Diagnostic Accuracy of Direct Immunofluorescence Test on Paraffin-Embedded Blocks in Comparison with Frozen Section Blocks in Renal Biopsies 

Figure 4 | Diagnostic Accuracy of Direct Immunofluorescence Test on Paraffin-Embedded Blocks in Comparison with Frozen Section Blocks in Renal Biopsies 