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. 2017 Mar 13;28(2):234–239. doi: 10.1111/bpa.12493

Figure 3.

Figure 3

Molecular pathology. Representative chromogenic in situ hybridization (CISH) results for lambda light chain mRNA (A) and kappa light chain mRNA (B) in patient 3. Note positivity for lambda mRNA in lymphoid cells while kappa mRNA is absent (original magnification 200×). C: Representative IgH gene clonality assay results showing a monoclonal peak in the amyloidoma of patient 4 (arrow). Controls included DNA from tonsils (polyclonal control) as well as B‐cell lymphoma (monoclonal control).