Rapidly Progressing Refractory Hodgkin Lymphoma: A Case Report and a Possible Explanation

Figure 2

CD30 positivity of the HRS cells in the skin lesion (a), sporadic CD20 positivity in the skin lesion (b), leukocyte common antigen (LCA) negative tumorous cells in the dermis (c), PAX5/CD4 coexpression in the HRS cells from the initial axillary lymph node (d), and unusual CD4 immunoreactivity of the HRS cells from the initial axillary lymph node (e).

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