{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T06:29:45Z","timestamp":1775197785924,"version":"3.50.1"},"reference-count":20,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq Bras Endocrinol Metab"],"published-print":{"date-parts":[[2014,6]]},"abstract":"<jats:p>Solitary fibrous tumor (SFT) is an uncommon spindle-cell neoplasm that most often involves the pleura, rarely occurring in extra-thoracic locations. Twenty-six cases of SFT arising in the thyroid gland have been described. We report a case of a 60-year-old woman presenting an 8-month history of enlargement of the neck associated with dysphagia. The patient underwent a right hemithyroidectomy and SFT of the thyroid was diagnosed. Immunohistochemistry showed positivity for CD34 marker, and the high number of mitoses and the presence of cellular atypia suggested that the tumor was malignant. To our knowledge, this is the second case of malignant SFT of the thyroid gland ever reported. Due to the rarity of these tumors, the indication of adjuvant therapy and prognosis are uncertain. Long-term follow-up after surgical resection seems to be advisable.<\/jats:p>","DOI":"10.1590\/0004-2730000003230","type":"journal-article","created":{"date-parts":[[2014,6,17]],"date-time":"2014-06-17T00:27:00Z","timestamp":1402964820000},"page":"402-406","source":"Crossref","is-referenced-by-count":14,"title":["Malignant solitary fibrous tumor of the thyroid: a case-report and review of the literature"],"prefix":"10.1590","volume":"58","author":[{"given":"Wellington","family":"Alves Filho","sequence":"first","affiliation":[{"name":"University of Sao Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renata Regina da Gra\u00e7a Lorencetti","family":"Mahmoud","sequence":"additional","affiliation":[{"name":"University of Sao Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel Marin","family":"Ramos","sequence":"additional","affiliation":[{"name":"University of Sao Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vergilius Jos\u00e9 Furtado de","family":"Araujo-Filho","sequence":"additional","affiliation":[{"name":"University of Sao Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia Picciarelli de","family":"Lima","sequence":"additional","affiliation":[{"name":"FMUSP,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudio Roberto","family":"Cernea","sequence":"additional","affiliation":[{"name":"University of Sao Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lenine Garcia","family":"Brand\u00e3o","sequence":"additional","affiliation":[{"name":"University of Sao Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","first-page":"385","article-title":"Primary neoplasm of the pleura: a report of five cases","volume":"11","author":"Klemperer P","year":"1931","journal-title":"Arch Pathol"},{"issue":"4","key":"ref2","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1089\/thy.2009.0237","article-title":"Solitary fibrous tumor arising in an intrathoracic goiter","volume":"20","author":"Larsen SR","year":"2010","journal-title":"Thyroid"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"568","DOI":"10.1046\/j.1365-2559.1997.2400897.x","article-title":"Solitary fibrous tumor ? 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