Cutaneous plasmacytosis: a clinicopathologic study of 12 cases in <scp>T</scp>aiwan revealing heterogeneous underlying causes

Abstract

Our study suggests that the so-called "cutaneous plasmacytosis" has heterogeneous underlying causes with or without systemic involvement and may be associated with clonal immunoglobulin gene rearrangements and IgG4-related lymphadenopathy. No effective treatment is available for this condition.