{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:49:14Z","timestamp":1760147354300,"version":"build-2065373602"},"reference-count":16,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,26]],"date-time":"2023-01-26T00:00:00Z","timestamp":1674691200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>We report the case of a 69-year-old woman who underwent 18F-FDG PET\/CT due to prolonged fever. One month before, the patient was diagnosed with COVID-19 infection. The 18F-FDG PET\/CT showed several subcutaneous nodules with 18F-FDG uptake on the thorax and upper extremities and bilateral lung infiltrates due to organizing pneumonitis. Clinical examination revealed multiple tender nodules on thorax, arms, and legs, consistent with erythema nodosum (EN) induced by COVID-19 infection. The woman was treated with prednisone with a good effect on EN. To our knowledge, this is the first report on EN secondary to COVID-19 infection diagnosed on 18F-FDG PET\/CT.<\/jats:p>","DOI":"10.3390\/diagnostics13030444","type":"journal-article","created":{"date-parts":[[2023,1,27]],"date-time":"2023-01-27T02:30:38Z","timestamp":1674786638000},"page":"444","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["COVID-19-Associated Erythema Nodosum Detected on FDG PET\/CT"],"prefix":"10.3390","volume":"13","author":[{"given":"Nora Eberfalvi","family":"Lipositsne","sequence":"first","affiliation":[{"name":"Department of Nuclearmedicine and PET Centre Aarhus University Hospital, 8200 Aarhus, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kirsten","family":"Bouchelouche","sequence":"additional","affiliation":[{"name":"Department of Nuclearmedicine and PET Centre Aarhus University Hospital, 8200 Aarhus, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1053\/j.semnuclmed.2020.11.003","article-title":"Imaging of COVID-19: CT, MRI, and PET","volume":"51","author":"Fields","year":"2021","journal-title":"Semin. 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Dermatol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"652","DOI":"10.1097\/01.RLU.0000079389.14140.be","article-title":"Erythema nodosum associated with diffuse, large B-cell non-Hodgkin lymphoma detected by FDG PET","volume":"28","author":"Cheong","year":"2003","journal-title":"Clin. Nucl. Med."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"e395","DOI":"10.1097\/RLU.0000000000003525","article-title":"FDG-Avid Erythema Nodosum Lesions of Behcet Disease Demonstrated on FDG PET\/CT","volume":"46","author":"Kesim","year":"2021","journal-title":"Clin. Nucl. Med."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"992","DOI":"10.1097\/RLU.0000000000000233","article-title":"FDG PET\/CT showing erythema nodosum associated with tuberculous lymphadenitis","volume":"38","author":"Chen","year":"2013","journal-title":"Clin. Nucl. Med."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"627","DOI":"10.1007\/s40257-020-00558-4","article-title":"Cutaneous Manifestations of COVID-19: An Evidence-Based Review","volume":"21","author":"Daneshgaran","year":"2020","journal-title":"Am. J. Clin. Dermatol."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"e236613","DOI":"10.1136\/bcr-2020-236613","article-title":"Erythema nodosum as a cutaneous manifestation of COVID-19 infection","volume":"13","author":"Suter","year":"2020","journal-title":"BMJ Case Rep."},{"key":"ref_16","first-page":"e13658","article-title":"Atypical erythema nodosum in a patient with COVID-19 pneumonia","volume":"33","year":"2020","journal-title":"Dermatol. Ther."}],"container-title":["Diagnostics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4418\/13\/3\/444\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T18:15:56Z","timestamp":1760120156000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4418\/13\/3\/444"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,1,26]]},"references-count":16,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2023,2]]}},"alternative-id":["diagnostics13030444"],"URL":"https:\/\/doi.org\/10.3390\/diagnostics13030444","relation":{},"ISSN":["2075-4418"],"issn-type":[{"type":"electronic","value":"2075-4418"}],"subject":[],"published":{"date-parts":[[2023,1,26]]}}}