{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T15:07:14Z","timestamp":1773673634044,"version":"3.50.1"},"reference-count":6,"publisher":"PAGEPress Publications","issue":"1","license":[{"start":{"date-parts":[[2025,6,6]],"date-time":"2025-06-06T00:00:00Z","timestamp":1749168000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dermatol Reports"],"abstract":"<jats:p>Linear psoriasiform eruptions in children are diagnostically challenging, particularly when they follow Blaschko\u2019s lines. The main differential diagnosis includes inflammatory linear verrucous epidermal nevus (ILVEN) and linear psoriasis (LP), a rare mosaic variant. We describe the case of a 5-year-old boy with extensive unilateral lesions clinically suggestive of both entities. Histology revealed Munro microabscesses and psoriasiform hyperplasia. The patient showed rapid improvement with topical calcipotriol\/betamethasone, followed by long-term remission. Notably, after 8 years of follow-up, the lesions remained strictly confined to the original Blaschkoid distribution, with no extracutaneous involvement and only mild recurrences. This clinical course strongly supports the diagnosis of isolated linear psoriasis (type 1 mosaicism). Few pediatric cases in the literature have documented such a long and stable evolution, making this report a valuable contribution to the distinction between LP and ILVEN. The case highlights the importance of integrating clinical, histological, and longitudinal data when evaluating linear dermatoses in children.<\/jats:p>","DOI":"10.4081\/dr.2025.10429","type":"journal-article","created":{"date-parts":[[2025,6,6]],"date-time":"2025-06-06T09:10:30Z","timestamp":1749201030000},"source":"Crossref","is-referenced-by-count":0,"title":["Linear psoriasis or inflammatory linear verrucous epidermal nevus? A pediatric case unraveling the mosaic puzzle"],"prefix":"10.4081","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7623-7184","authenticated-orcid":false,"given":"Nicol\u00f2","family":"Rivetti","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Camilla","family":"Vassallo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefania","family":"Barruscotti","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Valeria","family":"Brazzelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlo Francesco","family":"Tomasini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2549","published-online":{"date-parts":[[2025,6,6]]},"reference":[{"key":"36609","doi-asserted-by":"crossref","unstructured":"1. Happle R. Superimposed segmental manifestation of polygenic skin disorders. J Am Acad Dermatol 2007;57:690-9.","DOI":"10.1016\/j.jaad.2007.06.039"},{"key":"36610","doi-asserted-by":"crossref","unstructured":"2. Happle R. Somatic recombination may explain linear psoriasis. J Med Genet 1991;28:337.","DOI":"10.1136\/jmg.28.5.337"},{"key":"36611","doi-asserted-by":"crossref","unstructured":"3. Happle R. Mosaicism in human skin. Understanding the patterns and mechanisms. Arch Dermatol 1993;129:1460-70.","DOI":"10.1001\/archderm.1993.01680320094012"},{"key":"36612","doi-asserted-by":"crossref","unstructured":"4. Lee SH, Rogers M. Inflammatory linear verrucous epidermal naevi: a review of 23 cases. Australas J Dermatol 2001;42:252-6.","DOI":"10.1046\/j.1440-0960.2001.00530.x"},{"key":"36613","unstructured":"5. Vissers WH, Muys L, Erp PE, et al. Immunohistochemical differentiation between inflammatory linear verrucous epidermal nevus (ILVEN) and psoriasis. Eur J Dermatol 2004;14:216-20."},{"key":"36614","doi-asserted-by":"crossref","unstructured":"6. Chen L, Cheng Y, Peng L, et al. Clinical Characteristics and Therapeutic Aspects of Blaschko Linear Psoriasis. Dermatol Ther (Heidelb) 2024;14:1039-48.","DOI":"10.1007\/s13555-024-01140-0"}],"container-title":["Dermatology Reports"],"original-title":[],"link":[{"URL":"https:\/\/journals.pagepress.net\/dr\/article\/download\/10429\/9674","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.pagepress.net\/dr\/article\/download\/10429\/9894","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.pagepress.net\/dr\/article\/download\/10429\/9674","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T13:47:46Z","timestamp":1773668866000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.pagepress.net\/dr\/article\/view\/10429"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,6]]},"references-count":6,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,2,12]]}},"URL":"https:\/\/doi.org\/10.4081\/dr.2025.10429","relation":{},"ISSN":["2036-7406","2036-7392"],"issn-type":[{"value":"2036-7406","type":"electronic"},{"value":"2036-7392","type":"print"}],"subject":[],"published":{"date-parts":[[2025,6,6]]}}}