Balanitis plasmacellularis circumscripta (Zoon's  balanitis plasmacellularis).
A patient with clinical and histologic features typical of Zoon's balanitis plasmacellularis is presented herein. This entity has been infrequently reported in the English literature, perhaps due to a lack of familiarity with the disease.
D000368:Aged; D001446:Balanitis / Q000175:diagnosis / Q000473:pathology*; D003937:Diagnosis, Differential; D004919:Erythroplasia / Q000175:diagnosis; D006801:Humans; D008297:Male; D010413:Penis / Q000473:pathology