Inflammatory and infectious skin diseases presenting as cutaneous pseudolymphoma

Abstract

Cutaneous pseudolymphomas are a heterogeneous group of reactive lymphocytic infiltrates, which simulates cutaneous lymphomas clinically and histologically. Although in many cases the pathogenesis is not understood, a broad spectrum of different agents inducing pseudolymphomas has been reported. Cutaneous pseudolympomas are distinguished in four main groups: (a) nodular pseudolymphomas, (b) pseudo-mycosis fungoides (pseudo-MF) and simulators of other CTCLs, (c) other pseudolymphomas and (d) an intravascular pseudolymphoma. This article focuses on pseudolymphoma entities related to infections or inflammatory skin diseases. The integration of the clinical presentation and patients' history is mandatory for the correct diagnosis.