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Light micrograph of a section through a swollen lymph gland (lymphadenopathy), showing lymphoproliferation due to Epstein-Barr virus (EBV) infection in an immunosuppressed patient. There is pleiomorphic cell proliferation, with macrophages and atypical lymph cells. HES stain. Magnification: x1650 when printed at 10 centimetres wide.
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