{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T18:20:05Z","timestamp":1792002005211,"version":"4.4.0"},"reference-count":29,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2022,4,12]],"date-time":"2022-04-12T00:00:00Z","timestamp":1649721600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acad Dermatol Venereol"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Acral pustular disease within the pustular psoriasis\/psoriasis\u2010like spectrum mainly includes palmoplantar pustulosis (PPP) and acrodermatitis continua of Hallopeau (ACH). Scarce data argue for a distinction between these two entities, but no study has compared the clinical and epidemiologic characteristics of ACH and PPP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>We aimed to perform a comparative description of the epidemiological and clinical characteristics of PPP and ACH in a multicentre retrospective cohort.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this multicentre national retrospective cohort study, we compared the epidemiological characteristics, comorbidities and psoriasis characteristics of patients with PPP and ACH.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 234 patients were included: 203 (87%) with PPP, 18 (8%) with ACH and 13 (6%) with both, according to 2017 ERASPEN criteria. As compared with ACH, PPP was associated with female sex, smoking activity and higher median BMI (<jats:italic>P<\/jats:italic>\u2009=\u20090.01, <jats:italic>P<\/jats:italic>\u2009=\u20090.02 and <jats:italic>P<\/jats:italic>\u2009=\u20090.05 respectively). A family background of psoriasis was more frequent in PPP than ACH. Age of onset of palmoplantar disease was similar between PPP and ACH patients, median age 44 and 48\u2009years respectively. Peripheral joint inflammatory involvement was the only rheumatic disease associated with ACH. The association with another psoriasis type was similar in PPP and ACH (57.6% and 61.1% respectively).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our study confirms in a large PPP cohort the predominance of females and a high prevalence of smoking and elevated body mass index but also shows an association of these features in PPP as compared with ACH. In addition, it highlights peripheral arthritis as the only arthritis endotype associated with ACH. Increased knowledge of the immunogenetic backgrounds underlying these two entities is warranted to better stratify pustular psoriasis or psoriasis\u2010like entities for precision medicine.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jdv.18127","type":"journal-article","created":{"date-parts":[[2022,4,2]],"date-time":"2022-04-02T12:59:09Z","timestamp":1648904349000},"page":"1578-1583","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Palmoplantar pustulosis and acrodermatitis continua of Hallopeau: demographic and clinical comparative study in a large multicentre cohort"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6988-6178","authenticated-orcid":false,"given":"F.","family":"Assan","sequence":"first","affiliation":[{"name":"Dermatology Department H\u00f4pital Robert\u2010Debr\u00e9  Reims 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1098 Centre Hospitalo\u2010Universitaire (CHU)  Besan\u00e7on France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5780-1827","authenticated-orcid":false,"given":"E.","family":"Mah\u00e9","sequence":"additional","affiliation":[{"name":"Dermatology Department Centre Hospitalier (CH)  Argenteuil France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2995-7928","authenticated-orcid":false,"given":"D.","family":"Jullien","sequence":"additional","affiliation":[{"name":"Clinical Immunology Department CH Lyon\u2010Sud  Lyon France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1267-5270","authenticated-orcid":false,"given":"E.","family":"Sbidian","sequence":"additional","affiliation":[{"name":"Dermatology Department H\u00f4pital Henri\u2010Mondor  Cr\u00e9teil 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