Patients receiving immune checkpoint inhibitors (ICIs) commonly experience cutaneous immune-related adverse events (irAEs). We present two cases, a 51-year-old female and a 70-year-old male, that were undergoing treatment with pembrolizumab for metastatic melanoma and developed scaly, erythematous papules on their skin. Following skin biopsies, histological analysis confirmed the diagnosis of lichen planus. In the first patient, acitretin at a dosage of 25 mg/day was administered for 6 months, resulting in complete resolution of lichen lesions. Imaging scans showed no signs of melanoma. The second patient was treated with topical betamethasone dipropionate ointment for several weeks, which led to a favorable therapeutic response. During follow-up, a thoracic CT scan showed several micronodular lesions in the right lung, whereas brain and abdomen CT scans showed no signs of the disease. Lichen planus is not a commonly reported irAE in patients treated with ICIs. This report underscores the importance of conducting skin biopsies in patients receiving ICI therapy and highlights the potential prognostic importance of skin irAEs in patients with melanoma receiving such treatment.
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Lancet
January 2025
Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address:
Background: Dermatomyositis is a chronic autoimmune disease with distinctive cutaneous eruptions and muscle weakness, and the pathophysiology is characterised by type I interferon (IFN) dysregulation. This study aims to assess the efficacy, safety, and target engagement of dazukibart, a potent, selective, humanised IgG1 neutralising monoclonal antibody directed against IFNβ, in adults with moderate-to-severe dermatomyositis.
Methods: This multicentre, double-blind, randomised, placebo-controlled, phase 2 trial was conducted at 25 university-based hospitals and outpatient sites in Germany, Hungary, Poland, Spain, and the USA.
Photodiagnosis Photodyn Ther
January 2025
Department of Healthcare and Social Work, New Bulgarian University, Sofia, Bulgaria. Electronic address:
Purpose: Oral lichen planus (OLP) is a chronic inflammatory disease, in which T-Lymphocytes induce apoptosis of basal keratinocytes, leading to the formation of symptomatic lesions. It is assumed that blocking the cell death program and enhancing cell proliferation would be crucial to the healing process. The aim of the study was to verify the efficacy of Photobiomodulation (PBM) in OLP management, by evaluating the effects of laser irradiation on the processes of apoptosis and cell proliferation.
View Article and Find Full Text PDFJ Am Acad Dermatol
January 2025
Mayo Clinic Arizona, Department of Dermatology, Scottsdale, AZ, USA.
Traditionally, dermatological education emphasizes hair, skin and nails in its curriculum. There is a practice gap with regard to knowledge of normal oral mucosa variants, performance of the oral examination, and competence in diagnosing and treating oral mucosal disorders. The oral mucosa falls within the purview of dermatology.
View Article and Find Full Text PDFDiagnostics (Basel)
December 2024
Department of Dermatology, Medical University of Warsaw, 02-006 Warsaw, Poland.
Lichen planus (LP) is a chronic inflammatory disease that can present with significant morbidity, particularly in children. Erosive lichen planus (ELP), its rare destructive subtype, can be particularly difficult to diagnose and manage. We present a rare pediatric case of ELP with multisite involvement and discuss the differential diagnosis.
View Article and Find Full Text PDFLichen planus (LP) is an autoimmune disease that may affect the oral cavity and the skin, and it has the potential to change to malignancy. In this paper we report a LP case in a 42-year-old male patient in which anxiety and depression were apparently the only possible risk factors of LP. Due to this apparent comorbidity and the risk of not responding well to conventional medication (topical and systemic corticosteroids) or the risk of relapse in the case of ongoing stress, we decided to integrate psychotherapy (without psychotropic drugs) as an adjunct into the management strategy.
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