Real-life effectiveness of narrowband UVB phototherapy for pityriasis lichenoides: a retrospective study

Abstract

Dear Editor, Pityriasis lichenoides (PL) is an inflammatory skin disease of unknown etiology. The clinical spectrum of pityriasis lichenoides encompasses febrile ulcer-necrotic Mucha-Habermann disease (FUMHD), pityriasis lichenoides et varioliformis acuta (PLEVA), and pityriasis lichenoides chronica (PLC). Phototherapy is an effective and well-tolerated modality that is often successful for persistent PL or resistant to topical treatments. A retrospective observational study was conducted involving patients from the dermatology section of the University of Verona with a confirmed histological diagnosis of PLEVA and PLC accessed between January 2003 and June 2024. [...]

Keywords

• Pityriasis lichenoides
• phototherapy
• narrowband UVB