{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T12:50:05Z","timestamp":1779108605378,"version":"3.51.4"},"reference-count":34,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2021,2,8]],"date-time":"2021-02-08T00:00:00Z","timestamp":1612742400000},"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":["Dermatologic Therapy"],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>During COVID\u201019 pandemic, wearing masks for prevention became mandatory but evidence suggest that is also detrimental for skin. Although facial dermatoses due to masks increase in both healthcare workers and general population, a pathogenetic hypothesis remains still elusive. We aimed to evaluate the prevalence of dermatological consultations due to Koebner triggered dermatoses In this prospective, multicenter, real life study carried out in Italy from March 11th to December 11th 2020 during COVID\u201019 pandemics, dermatological consultations (in\u2010person and telemedicine) to study the prevalence of Koebner (KB) phenomenon due to masks were evaluated. Boyd and Nelder classification was adopted for Koebner phenomenon and Bizzozero's for KB intensity. A total of 229\/873 (26.2%) dermatological consultations were KB triggered dermatoses and lesions were located in mask\u2010covered ear area (76 [33.2%]), malar area (73 [31.8%]), perioral area (53 [23.1%]), and nose (27 [11.8%]). The first KB category grouped 142 patients (psoriasis, vitiligo, maskne, and mask rosacea), the second one 24 (warts, molluscum contagiosum, and impetigo), the third one 46 (atopic dermatitis), and the fourth one 17 (eczema). Among previously KB negative psoriatic patients that became KB positive, 9\/13 (69.2%) had discontinued or modified the prescribed antipsoriatic treatment. Mask\u2010related Koebner phenomenon is an important clinical sign to orient clinician's therapeutic protocols during COVID\u201019 pandemic, especially in patients with psoriasis.<\/jats:p>","DOI":"10.1111\/dth.14823","type":"journal-article","created":{"date-parts":[[2021,2,3]],"date-time":"2021-02-03T20:38:40Z","timestamp":1612384720000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Mask\u2010induced Koebner phenomenon and its clinical phenotypes: A multicenter, real\u2010life study focusing on 873 dermatological consultations during COVID\u201019 pandemics"],"prefix":"10.1155","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2390-6505","authenticated-orcid":false,"given":"Giovanni","family":"Damiani","sequence":"first","affiliation":[{"name":"Clinical Dermatology IRCCS Istituto Ortopedico Galeazzi  Milan Italy"},{"name":"Department of Biomedical, Surgical, and Dental Sciences University of Milan  Milan Italy"},{"name":"Department of Pharmaceutical and Pharmacological Sciences University of Padua  Padua Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7298-4446","authenticated-orcid":false,"given":"Laura Cristina","family":"Gironi","sequence":"additional","affiliation":[{"name":"AOU Maggiore della Carit\u00e0  Novara Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9971-9151","authenticated-orcid":false,"given":"Khalaf","family":"Kridin","sequence":"additional","affiliation":[{"name":"L\u00fcbeck Institute of Experimental Dermatology University of L\u00fcbeck  L\u00fcbeck Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0348-0620","authenticated-orcid":false,"given":"Alessia","family":"Pacifico","sequence":"additional","affiliation":[{"name":"Clinical Dermatology Department IRCCS S. Gallicano Dermatological Institute  Rome Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandra","family":"Buja","sequence":"additional","affiliation":[{"name":"Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Unit of Hygiene and Public Health University of Padua  Padua Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicola Luigi","family":"Bragazzi","sequence":"additional","affiliation":[{"name":"Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics York University  Toronto Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Magdalena","family":"Spalkowska","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Department of Dermatology Jagellonian University Medical College  Krakow Poland"},{"name":"Department of Rheumatology and Immunology University Hospital of Krakow  Krakow 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