Figure 2From: A transient benign lymph node-based proliferation of T-cells simulating non-Hodgkin lymphoma in a patient with psoriasis treated with tumor necrosis factor alpha and CD11a antagonistsLymph node biopsy. Follicular destruction was demonstrated with immunohistochemistry, which revealed small clusters of CD10 positive small lymphocytes, corresponding to the residual germinal centers (Upper right panel, original magnification ×400). CD23 immunohistochemistry showed the dendritic cell network to be essentially obliterated (Lower right panel, original magnification ×400). For comparison, normal germinal centers stained for CD10 and CD23 are illustrated in the upper left and lower left panels, respectively (Original magnification ×400).Back to article page