{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T23:38:54Z","timestamp":1791848334573,"version":"4.3.4"},"reference-count":11,"publisher":"S. Karger AG","issue":"5","license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Skin Appendage Disord"],"published-print":{"date-parts":[[2021]]},"abstract":"<jats:p>&lt;b&gt;&lt;i&gt;Introduction:&lt;\/i&gt;&lt;\/b&gt; Physicians have largely studied the cutaneous involvement of coronavirus disease 2019 (COVID-19), but only few reports have focused on telogen effluvium (TE) as a possible sequela of COVID-19. We assessed 14 cases of hair loss occurring after SARS-CoV-2 infection using trichoscopy and trichogram to investigate patterns related to COVID-19. Furthermore, we discussed possible mechanisms involved in COVID-19 TE. &lt;b&gt;&lt;i&gt;Case Presentation:&lt;\/i&gt;&lt;\/b&gt; Fourteen individuals were referred to our post-COVID-19 dermatology office complaining acute hair loss after SARS-CoV-2 infection. Clinical evaluation included pull test, trichoscopy, and trichogram. CO\u00adVID-19 TE occurred after a median of 2 months (range 1\u20133 months) following SARS-CoV-2 infection. The median duration of hair loss was 5 months (range 1\u20136 months). Trichoscopy showed variable but typical TE patterns. Trichogram showed different telogen\/anagen ratio depending on the interval between onset of hair loss and trichological visit. &lt;b&gt;&lt;i&gt;Discussion\/Conclusion:&lt;\/i&gt;&lt;\/b&gt; Our cases showed TE between 1 and 3 months after the onset of SARS-CoV-2 infection, thus earlier than classic TE. Trichoscopic features and trichogram showed no variations from classic TE. Different pathogenetic mechanisms including pro-inflammatory cytokines and direct viral damage on the hair follicle can be hypothesized; further studies on a larger sample are needed to better understand this condition.<\/jats:p>","DOI":"10.1159\/000517223","type":"journal-article","created":{"date-parts":[[2021,7,8]],"date-time":"2021-07-08T17:01:08Z","timestamp":1625763668000},"page":"377-381","source":"Crossref","is-referenced-by-count":31,"title":["Telogen Effluvium after SARS-CoV-2 Infection: A Series of Cases and Possible Pathogenetic Mechanisms"],"prefix":"10.1159","volume":"7","author":[{"given":"Alfredo","family":"Rossi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesca","family":"Magri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1985-0326","authenticated-orcid":false,"given":"Alvise","family":"Sernicola","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simone","family":"Michelini","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gemma","family":"Caro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marta","family":"Muscianese","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Di Fraia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camilla","family":"Chello","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Caterina","family":"Fortuna","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teresa","family":"Grieco","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2021,7,8]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1007\/s40257-020-00558-4"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1111\/dth.13648"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1111\/dth.13923"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.31128\/AJGP-COVID-32"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1111\/ijd.15313"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1159\/000247518"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1089\/jir.1997.17.151"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1002\/cyto.a.24047"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.3389\/fcimb.2018.00268"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1080\/21645515.2020.1796425"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1111\/exd.14259"}],"container-title":["Skin Appendage Disorders"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/517223","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/517223","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T11:02:58Z","timestamp":1745406178000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000517223"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"references-count":11,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2021,8,31]]},"published-print":{"date-parts":[[2021,10,6]]}},"URL":"https:\/\/doi.org\/10.1159\/000517223","archive":["Portico"],"relation":{},"ISSN":["2296-9195","2296-9160"],"issn-type":[{"value":"2296-9195","type":"print"},{"value":"2296-9160","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021]]}}}