{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T11:19:06Z","timestamp":1774264746614,"version":"3.50.1"},"reference-count":10,"publisher":"BMJ","issue":"7","license":[{"start":{"date-parts":[[2020,7,1]],"date-time":"2020-07-01T00:00:00Z","timestamp":1593561600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/bmj.com\/coronavirus\/usage"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2020,6,28]]},"published-print":{"date-parts":[[2020,7]]},"abstract":"<jats:p>Erythema nodosum (EN) is a common dermatological manifestation with many different aetiologies. Often however, the aetiology remains unidentified. We present here a 42-year-old male patient with an EN that is due to an acute COVID-19 infection. Most of the usual aetiologies were excluded by laboratory testing and imaging studies. This case is, to our knowledge, the first report of this cutaneous manifestation in the context of a COVID-19 infection. The EN was successfully treated with the disappearance of the COVID-19 infection and topical corticosteroids.<\/jats:p>","DOI":"10.1136\/bcr-2020-236613","type":"journal-article","created":{"date-parts":[[2020,7,9]],"date-time":"2020-07-09T02:15:25Z","timestamp":1594260925000},"page":"e236613","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":31,"title":["Erythema nodosum as a cutaneous manifestation of COVID-19 infection"],"prefix":"10.1136","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1426-4544","authenticated-orcid":false,"given":"Philipp","family":"Suter","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, HFR Fribourg Hopital cantonal, Fribourg, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Blandine","family":"Mooser","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, HFR Fribourg Hopital cantonal, Fribourg, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hoa Phong","family":"Pham Huu Thien","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, HFR Fribourg Hopital cantonal, Fribourg, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2020,7,8]]},"reference":[{"key":"2025082707202122000_13.7.e236613.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.det.2008.05.014"},{"key":"2025082707202122000_13.7.e236613.2","first-page":"695","article-title":"Erythema nodosum: a sign of systemic disease","volume":"75","author":"Schwartz","year":"2007","journal-title":"Am Fam Physician"},{"key":"2025082707202122000_13.7.e236613.3","doi-asserted-by":"crossref","DOI":"10.5070\/D3204022376","article-title":"Erythema nodosum - a review of an uncommon panniculitis","volume":"20","author":"Blake","year":"2014","journal-title":"Dermatol Online J"},{"key":"2025082707202122000_13.7.e236613.4","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-4362.1998.00316.x"},{"key":"2025082707202122000_13.7.e236613.5","first-page":"e212-e213","article-title":"Cutaneous manifestations in COVID-19: a first perspective","volume":"34","author":"Recalcati","year":"2020","journal-title":"J Eur Acad Dermatol Venereol"},{"key":"2025082707202122000_13.7.e236613.6","doi-asserted-by":"crossref","unstructured":"Manalo IF , Smith MK , Cheeley J , et al . A dermatologic manifestation of COVID-19: transient Livedo reticularis. 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