Figure 7. This high power magnification of the portal tract shows the key routine histological features used to establish the diagnosis of EBV-related post-transplant related lymphoproliferative disorders. Note the monomorphic composition of the infiltrate, which is composed of large atypical lymphocytes many of which show features of plasmacytoid differentiation. In contrast to acute rejection, note the paucity of eosinophils and other non-lymphoid hematolymphoid cells.

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