Histologic features and immunophenotype of cutaneous B cell pseudolymphoma

Histology of cutaneous pseudo-B-cell lymphoma in the red parts of a tattoo. Hematoxylin and eosin (H&E)-stained section shows nodular to diffuse dermal infiltrates with prominent germinal centers (A), which are clearly visible in the CD35-stained section (D). CD79a (B) and CD3 (C) stainings show distinct B-cell and T-cell compartments, respectively. Note pigment in the interfollicular T-cell areas.