{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T08:05:52Z","timestamp":1779696352866,"version":"3.53.1"},"reference-count":18,"publisher":"Scientific Scholar","issue":"2","license":[{"start":{"date-parts":[[2025,3,1]],"date-time":"2025-03-01T00:00:00Z","timestamp":1740787200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:p>\n                    Among the thyroid malignancies, primary thyroid sarcomas are very rare, comprising &lt; 1% of all thyroid malignancies. Sarcoma, in particular spindle cell sarcomas of the thyroid gland, is very rare and aggressive which carries poor prognosis. Very little has been published regarding imaging findings and metastatic patterns of this rare entity. We report a case of metastatic spindle cell sarcoma of the thyroid presenting with hoarseness of voice and anterior neck swelling. Subsequent fluorine-18-fluorodeoxyglucose positron emission tomography\/computed tomography (\n                    <jats:sup>18<\/jats:sup>\n                    F-FDG PET\/CT) imaging demonstrated a fluorine-18-FDG avid mass lesion in the left lobe of the thyroid, along with FDG avid cervical lymph nodes and multiple FDG avid nodules of varying sizes in the bilateral lung fields.\n                    <jats:sup>18<\/jats:sup>\n                    F-FDG PET\/CT proved invaluable in accurately staging this rare case of metastatic high-grade sarcoma originating from the thyroid.\n                  <\/jats:p>","DOI":"10.4103\/ijnm.ijnm_147_24","type":"journal-article","created":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T02:00:33Z","timestamp":1751248833000},"page":"95-98","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["A Case Report of Metastatic Primary Thyroid Sarcoma Evaluated by 18F-FDG PET\/CT"],"prefix":"10.25259","volume":"40","author":[{"given":"Archana","family":"Yadav","sequence":"first","affiliation":[{"name":"Department of Nuclear Medicine, Army Hospital Research and Referral, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. 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Anil","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Nuclear Medicine, Army Hospital Research and Referral, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vempa","family":"Satish","sequence":"additional","affiliation":[{"name":"Department of Nuclear Medicine, Army Hospital Research and Referral, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kritika","family":"Dewan","sequence":"additional","affiliation":[{"name":"Department of Pathology, Army Hospital Research and Referral, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2025,6,27]]},"reference":[{"key":"R1-20250701","doi-asserted-by":"crossref","first-page":"1054","DOI":"10.1056\/NEJMra1501993","article-title":"Biologic and clinical perspectives on thyroid cancer","volume":"375","author":"Fagin","year":"2016","journal-title":"N Engl J Med"},{"key":"R2-20250701","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1530\/ERC-15-0445","article-title":"Recent incidences and differential trends of thyroid cancer in the USA","volume":"23","author":"Mao","year":"2016","journal-title":"Endocr Relat Cancer"},{"key":"R3-20250701","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1089\/thy.2015.0020","article-title":"2015 American Thyroid Association management guidelines for adult patients with thyroid nodules and differentiated thyroid cancer: The American Thyroid Association Guidelines task force on thyroid nodules and differentiated thyroid cancer","volume":"26","author":"Haugen","year":"2016","journal-title":"Thyroid"},{"key":"R4-20250701","first-page":"5185","article-title":"Primary thyroid sarcoma: A systematic review","volume":"35","author":"Surov","year":"2015","journal-title":"Anticancer Res"},{"key":"R5-20250701","doi-asserted-by":"crossref","first-page":"e124","DOI":"10.1016\/j.suronc.2010.06.002","article-title":"Primary thyroid lymphoma (correction of lympoma): Diagnostic and therapeutic dilemmas","volume":"19","author":"Sakorafas","year":"2010","journal-title":"Surg Oncol"},{"key":"R6-20250701","doi-asserted-by":"crossref","first-page":"702","DOI":"10.1080\/00015458.2008.11680320","article-title":"Unusual malignant thyroid tumours \u2013 A clinical study of 20 cases","volume":"108","author":"Bu\u0142a","year":"2008","journal-title":"Acta Chir Belg"},{"key":"R7-20250701","doi-asserted-by":"crossref","first-page":"826","DOI":"10.1016\/j.clinimag.2014.06.019","article-title":"Imaging findings of thyroidal sarcoma","volume":"38","author":"Surov","year":"2014","journal-title":"Clin Imaging"},{"key":"R8-20250701","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1590\/S1808-86942012000400010","article-title":"The histological rarity of thyroid cancer","volume":"78","author":"Vianna","year":"2012","journal-title":"Braz J Otorhinolaryngol"},{"key":"R9-20250701","first-page":"S95","article-title":"Primary spindle cell lesions of the thyroid gland; 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