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splenic infectious mononucleosis
Saturday 18 May 2013
Microscopy
expansion of red pulp
- immunoblastic proliferation in red pulp
- Immunoblasts may have strikingly atypical morphology, resemble Reed-Sternberg cells
- immunoblastic infiltration of subintima of intratrabecular veins
- Immunoblasts are positive for B and T cell markers, EBV by in situ hybridization, variable CD30
red pulp hemophagocytosis
Differential diagnosis
Hodgkin lymphoma
splenic localization of leukemia
splenic lymphomas