{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T12:02:56Z","timestamp":1774612976042,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,1,10]],"date-time":"2025-01-10T00:00:00Z","timestamp":1736467200000},"content-version":"vor","delay-in-days":9,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Case Reports"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Follicular porokeratosis (FPK) is a rare subtype of porokeratosis. Follicular porokeratosis mainly occurs in men and may be localized or diffuse. Involvement of the scalp is rarely reported, and we found only one case of alopecia due to scalp FPK. Diabetes mellitus has not been reported in association with FPK We report a 35\u2010year\u2010old diabetic woman that presented with brown follicular keratotic papules and spicules involving the scalp, face, trunk, and extremities, accompanied by scalp alopecia. The differential diagnoses were lichen planopilaris, papular eczema, and phrynoderma. Histopathologic examination of skin punch biopsies revealed the follicle\u2010centered cornoid lamella as the feature of FPK. The patient was treated with oral isotretinoin, and the lesions improved partially within 6\u2009weeks of follow\u2010up. Follicular porokeratosis might be considered among the differential diagnoses of keratotic papules (with or without spicules) and in the cases of alopecia with keratotic papules. Diabetes mellitus may be associated with FPK.<\/jats:p>","DOI":"10.1002\/ccr3.70100","type":"journal-article","created":{"date-parts":[[2025,1,11]],"date-time":"2025-01-11T00:56:17Z","timestamp":1736556977000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Extensive Spiculated Follicular Porokeratosis With Alopecia: A Case Report"],"prefix":"10.1002","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1937-0362","authenticated-orcid":false,"given":"Mitra","family":"Abdolvand","sequence":"first","affiliation":[{"name":"Department of Dermatology, School of Medicine Shiraz University of Medical Sciences  Shiraz Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0984-4704","authenticated-orcid":false,"given":"Roya","family":"Radanfar","sequence":"additional","affiliation":[{"name":"Department of Dermatology, School of Medicine Shiraz University of Medical Sciences  Shiraz Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8773-0019","authenticated-orcid":false,"given":"Mozhdeh","family":"Sepaskhah","sequence":"additional","affiliation":[{"name":"Molecular Dermatology Research Center, Department of Dermatology, School of Medicine Shiraz University of Medical Sciences  Shiraz Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fatemeh","family":"Sari Aslani","sequence":"additional","affiliation":[{"name":"Molecular Dermatology Research Center, Department of Pathology, School of Medicine Shiraz University of Medical Sciences  Shiraz Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mojgan","family":"Akbarzadeh Jahromi","sequence":"additional","affiliation":[{"name":"Department of Pathology, School of Medicine Shiraz University of Medical Sciences  Shiraz 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