Putative Reed Sternberg cells in ductal carcinoma <i>in situ</i> (by immunohistochemistry).

<p><b>Panel A.</b> Positive EBNA 1 expression in a putative Reed Sternberg cells. <b>Panel B.</b> Positive CD 15 expression in putative Reed Sternberg cells. It is not possible to determine whether these cells are Reed Sternberg or granuloma cells.</p>

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