{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T02:56:57Z","timestamp":1776826617280,"version":"3.51.2"},"reference-count":15,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2022,4,15]],"date-time":"2022-04-15T00:00:00Z","timestamp":1649980800000},"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":["The Journal of Dermatology"],"published-print":{"date-parts":[[2022,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>In this paper, we report the case of a 71\u2010year\u2010old man with an 8\u2010year history of melanonychia on the right little finger, who referred to our hospital because the color of pigmented area had gradually darkened and the width had expanded. Physical examination revealed longitudinal melanonychia with brown color (4\u2009mm in width). Dermoscopic examination revealed multiple white round clods and splinter hemorrhages. No micro\u2010Hutchinson sign was observed. We performed a punch biopsy (diameter 3\u2009mm) of the nail matrix for diagnosis. Histopathological examination revealed irregular acanthosis of epithelium of the nail bed and distal matrix, which consisted of basaloid cells without nuclear atypia. Several zones exhibited cell whorls reminiscent of squamous eddies. The whorls were composed of large pink cells arranged in an onion peel\u2010like fashion. The basaloid cells tested negative for human papillomavirus <jats:italic>in situ<\/jats:italic> hybridization and p16 staining. The morphology of white round clods (milia\u2010like cysts in metaphoric term) observed in dermoscopic analysis corresponded to squamous eddies in histopathology. Considering these features, ungual seborrheic keratosis (SK) with longitudinal melanonychia was diagnosed, which is an atypical site for SK. We suggest that the dermoscopic finding of milia\u2010like cysts may be useful for the diagnosis of ungual SK.<\/jats:p>","DOI":"10.1111\/1346-8138.16392","type":"journal-article","created":{"date-parts":[[2022,4,16]],"date-time":"2022-04-16T04:36:50Z","timestamp":1650083810000},"page":"775-778","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Ungual seborrheic keratosis with longitudinal melanonychia: A case report"],"prefix":"10.1111","volume":"49","author":[{"given":"Eisuke","family":"Kameda","sequence":"first","affiliation":[{"name":"Department of Dermatology, Graduate School of Medicine Chiba University  Chiba Japan"},{"name":"Divison of Dermatology Funabashi Municipal Medical Center  Chiba Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8472-3609","authenticated-orcid":false,"given":"Yaei","family":"Togawa","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Graduate School of Medicine Chiba University  Chiba Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yugo","family":"Maru","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Graduate School of Medicine Chiba University  Chiba Japan"},{"name":"Divison of Dermatology Funabashi Municipal Medical Center  Chiba Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyuki","family":"Matsue","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Graduate School of Medicine Chiba University  Chiba Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,4,15]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1610-0387.2008.06788.x"},{"key":"e_1_2_6_3_1","first-page":"835","article-title":"Differential diagnosis of seborrheic keratosis: clinical and dermoscopic features","volume":"16","author":"Braun RP","year":"2017","journal-title":"J Drugs Dermatol"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/1346-8138.13657"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-3083.2010.03579.x"},{"key":"e_1_2_6_6_1","first-page":"269","article-title":"Ungual seberrheic keratosis or initial onychomatricoma on the right thumb","volume":"33","author":"Inoue T","year":"2011","journal-title":"Pract Dermatol"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/jdv.12866"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/ijd.14345"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/jdv.15017"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1053\/j.jfas.2014.05.013"},{"key":"e_1_2_6_11_1","first-page":"1327","article-title":"Subungual Bowen's disease presenting as longitudinal melanonychia: a case report and review of 156 reported cases with Bowen's disease of the nail apparatus in the literature","volume":"128","author":"Hasegawa M","year":"2018","journal-title":"J Dermatol"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1097\/DAD.0b013e31822c3d8b"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.4103\/ds.ds_25_19"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1590\/abd1806-4841.20197865"},{"key":"e_1_2_6_15_1","first-page":"57","article-title":"Three cases of onychomatricoma","volume":"132","author":"Kubo N","year":"2022","journal-title":"Jpn J Dermatol"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/1346-8138.13616"}],"container-title":["The Journal of Dermatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/1346-8138.16392","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/1346-8138.16392","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/1346-8138.16392","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,23]],"date-time":"2023-08-23T19:57:44Z","timestamp":1692820664000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/1346-8138.16392"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,4,15]]},"references-count":15,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2022,8]]}},"alternative-id":["10.1111\/1346-8138.16392"],"URL":"https:\/\/doi.org\/10.1111\/1346-8138.16392","archive":["Portico"],"relation":{},"ISSN":["0385-2407","1346-8138"],"issn-type":[{"value":"0385-2407","type":"print"},{"value":"1346-8138","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,4,15]]},"assertion":[{"value":"2022-03-02","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-03-29","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-04-15","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}