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Images 10.103.1A: Perivascular dermatitis, psoriasiform lichenoid + 10.103.1B: Infiltrate of histiocytes, plasma cells, lymphocytes, and neutrophils, edema of the papillary dermis, and neutrophils in the acanthotic epidermis, including in a broad zone of parakeratosis = Syphilis, secondary  A psoriasiform lichenoid pattern in which mononuclear cells other than lymphocytes predominate is typical of secondary syphilis. Neutrophils […]