{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T18:50:11Z","timestamp":1770576611527,"version":"3.49.0"},"reference-count":31,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,4,14]],"date-time":"2024-04-14T00:00:00Z","timestamp":1713052800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Photoderm Photoimm Photomed"],"published-print":{"date-parts":[[2024,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Pityriasis lichenoides chronica is the chronic end of the spectrum of pityriasis lichenoides which have several forms of papulosuamous conditions. Several treatments obtained complete clearance of the condition including phototherapy and specifically narrow band ultraviolet B. The Excimer light 308 is a monochromatic light that acts within the ultraviolet B wavelength and used as a targeted phototherapy in several skin conditions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Thirty\u2010four patients with histopathologically diagnosed pityriasis lichenoides chronica underwent treatment with biweekly sessions of excimer light 308\u2009nm. Treatment continued until complete clearance was obtained or to a maximum of 48 sessions (24\u2009weeks).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thirty\u2010one patients obtained complete clearance with no recurrence till the end of the study period, two patients had partial response and only one patient showed poor response to treatment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Excimer light can be a safe and effective treatment of pityriasis lichinoides chronica in different ages and genders.<\/jats:p><\/jats:sec>","DOI":"10.1111\/phpp.12964","type":"journal-article","created":{"date-parts":[[2024,4,15]],"date-time":"2024-04-15T05:04:10Z","timestamp":1713157450000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Efficacy and safety of excimer light (308\u2009nm) in the treatment of pityriasis lichenoides chronica"],"prefix":"10.1111","volume":"40","author":[{"given":"Eman Mohamed","family":"Salah","sequence":"first","affiliation":[{"name":"Department of Dermatology, Andrology, Sexual Medicine and STDs, Faculty of Medicine Helwan University  Cairo Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0162-5080","authenticated-orcid":false,"given":"Nermeen Ibrahim","family":"Bedair","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Andrology, Sexual Medicine and STDs, Faculty of Medicine Helwan University  Cairo Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah Khalil Abd","family":"El\u2010Rahim","sequence":"additional","affiliation":[{"name":"Department of Dermatology Amreya Hospital  Alexandria Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed Ahmed","family":"El\u2010Khalawany","sequence":"additional","affiliation":[{"name":"Department of Dermatology and 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