{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T19:20:12Z","timestamp":1769023212642,"version":"3.49.0"},"reference-count":30,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2015,11,13]],"date-time":"2015-11-13T00:00:00Z","timestamp":1447372800000},"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":["Int J Dermatology"],"published-print":{"date-parts":[[2016,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Trichostasis spinulosa (<jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content>) is a common, underdiagnosed cosmetic skin condition.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The main objectives of this study were to determine the occurrence of <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> relative to age and gender, to analyze its cutaneous distribution, and to investigate any possible familial basis for this condition, its impact on patients, and the types and efficacy of previous treatments.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>All patients presenting to the outpatient dermatology clinic at the study institution and their relatives were examined for the presence of <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> and were questioned about family history and previous treatment. Photographs and biopsies of suspected cases of <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> were obtained.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 2400 patients seen between August and December 2013, 286 patients were diagnosed with <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> (135 males, 151 females; prevalence: 11.9%). Women presented more frequently than men with complaints of <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> (6.3 vs. 4.2%), and more women had received prior treatment for <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> (10.5 vs. 2.8%). The most commonly affected sites were the face (100%), interscapular area (10.5%), and arms (3.1%). Lesions involved the nasal alae in 96.2%, the nasal tip in 90.9%, the chin in 55.9%, and the cheeks in 52.4% of patients. Only 15.7% of patients had forehead lesions, and only 4.5% had perioral lesions. Among the 38 previously treated patients, 65.8% reported temporary improvement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Trichostasis spinulosa is a common condition that predominantly affects the face in patients of all ages. Additional studies employing larger cohorts from multiple centers will be required to determine the prevalence of <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> in the general population.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ijd.13110","type":"journal-article","created":{"date-parts":[[2015,11,14]],"date-time":"2015-11-14T02:32:44Z","timestamp":1447468364000},"page":"989-994","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Incidence of trichostasis spinulosa at a single institution in Yemen"],"prefix":"10.1111","volume":"55","author":[{"given":"Mohammad A.","family":"Alshami","sequence":"first","affiliation":[{"name":"Department of Dermatology Al\u2010Kuwait University Hospital Sana'a University Sana'a Yemen"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,11,13]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02012041"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01828076"},{"key":"e_1_2_6_4_1","first-page":"1269","article-title":"Das Pinselhaar. 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