{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T12:48:12Z","timestamp":1770814092066,"version":"3.50.1"},"reference-count":20,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T00:00:00Z","timestamp":1755648000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T00:00:00Z","timestamp":1755648000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Head &amp;amp; Neck"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Extraosseous Ewing sarcomas account for approximately 20%\u201330% of all Ewing sarcomas. Among these, 5%\u201310% occur in the head and neck region, representing approximately 1%\u20133% of all Ewing sarcomas.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We report the case of a 33\u2010year\u2010old female patient with a progressively enlarging mass in the frontal scalp over the course of 18\u2009months. The lesion had previously been surgically excised twice, with benign pathology reports on both occasions. Given the imaging findings suggestive of malignancy, a diagnostic surgical resection was performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Histology and immunophenotyping were compatible with extraosseous Ewing sarcoma; therefore, adjuvant chemotherapy and radiotherapy were administered.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This represents the seventh reported case of primary involvement of the scalp; and the first reported in Latin America.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/hed.70019","type":"journal-article","created":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T09:22:46Z","timestamp":1755681766000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Extraosseous Ewing Sarcoma of the Scalp: A Rare Case Report"],"prefix":"10.1002","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9313-6916","authenticated-orcid":false,"given":"Maria G.","family":"Quintero Arias","sequence":"first","affiliation":[{"name":"Head and Neck Surgery Department Fundaci\u00f3n Oftalmol\u00f3gica de Santander  Floridablanca Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9986-8501","authenticated-orcid":false,"given":"Alvaro J.","family":"Lora Mantilla","sequence":"additional","affiliation":[{"name":"Radiology Resident Universidad de Santander  Bucaramanga Colombia"},{"name":"Research, Development, and Technological Innovation Department Fundaci\u00f3n Oftalmol\u00f3gica de Santander  Floridablanca Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5369-2579","authenticated-orcid":false,"given":"Catalina C\u00e1ceres","family":"Ram\u00edrez","sequence":"additional","affiliation":[{"name":"Research, Development, and Technological Innovation Department Fundaci\u00f3n Oftalmol\u00f3gica de Santander  Floridablanca Colombia"},{"name":"Dermatology Resident Universidad Aut\u00f3noma de Bucaramanga  Bucaramanga Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andr\u00e9s F.","family":"Rey Rodr\u00edguez","sequence":"additional","affiliation":[{"name":"Head and Neck Surgery Department Fundaci\u00f3n Oftalmol\u00f3gica de Santander  Floridablanca Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6233-9582","authenticated-orcid":false,"given":"Paul A.","family":"Camacho L\u00f3pez","sequence":"additional","affiliation":[{"name":"Head of the Research, Development, and Technological Innovation Department Fundaci\u00f3n Oftalmol\u00f3gica de Santander  Floridablanca Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,8,20]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1148\/rg.210226"},{"key":"e_1_2_10_3_1","first-page":"2","article-title":"A Tumor of the Ulnar Nerve","volume":"12","author":"Stout A. 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