Abstract

Pityriasis lichenoides (PL) is an uncommon, acquired and polymorphic condition, which poses various challenges. It is a difficult and debatable disorder to diagnose, categorize and treat. Pityriasis lichenoides et varioliformis acuta (PLEVA), pitiryasis lichenoides chronica (PLC) and febrile ulceronecrotic Mucha-Habermann disease (FUMHD) are diverse manifestations delineated along a continuum of multiple variants. Histollogically, PL is characterized by interface dermatitis with prominent lymphocytic infiltrate. The most critical ambiguity is the etiology behind this condition, numerous implications have surfaced, yet none has revealed the pathogenic mechanism of these disease. No standard treatment modality exists. A combination therapy is frequently considered the best approach to PL care. We report a case of a patient with PL which initial presentation was compatible with pityriasis rosa or secondary syphilis.