PMC3970440_01
Bone marrow biopsy showed infiltration with hairy cells.
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fig1
Bone marrow core biopsy show large lymphocytes with small cytoplasmic projections (Figure 1).
Infiltration with neutrophils (Sweet syndrome).
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fig2
CD45, CD19, CD20, CD11c, CD22, CD25, and CD103, consistent with hairy cell leukemia. Concurrently, the skin biopsy showed neutrophilic dermatosis, consistent with Sweet syndrome (Figure 2).