{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T13:17:40Z","timestamp":1771334260714,"version":"3.50.1"},"reference-count":33,"publisher":"The Endocrine Society","issue":"8","license":[{"start":{"date-parts":[[2024,11,18]],"date-time":"2024-11-18T00:00:00Z","timestamp":1731888000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81772852"],"award-info":[{"award-number":["81772852"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81972496"],"award-info":[{"award-number":["81972496"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,7,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Purpose<\/jats:title>\n                  <jats:p>This study aimed to describe the ultrasound characteristics of papillary thyroid carcinoma (PTC) harboring RET gene fusion and explore its clinical significance.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A retrospective study was conducted on 209 patients with PTC diagnosed between August 2021 and January 2024. All patients underwent ultrasound examination and were confirmed to be positive for RET fusion or BRAFV600E by pathological results. The differences in clinical characteristics and ultrasonography features between the 2 groups were analyzed.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Among all PTCs (n = 209), we detected 30 RET fusions and 179 BRAFV600E. RET-fusion PTCs showed younger age [38.5 (16.0-69.0) vs 42.9 (20.0-74.0) years, P &amp;lt; .05], larger tumor size [1.09 (0.5-4.0) vs 0.77 (0.1-4.0) cm, P &amp;lt; .005], and more advanced N stage (P &amp;lt; .001) than BRAFV600E PTCs. RET-fusion PTCs were mainly classical and diffuse sclerosing subtypes. In terms of ultrasound performance, RET-fusion PTCs were mainly manifested as heterogeneous echogenicity (43.3%), ill-defined tumor margin (90.0%), irregular shape (83.3%), and intranodular microcalcification (83.3%), characterized by scattered microcalcification around the tumor\/within thyroid gland (40.0%). In comparison, BRAFV600E PTCs were mainly characterized by hypoechogenicity (95.5%), round\/oval shape (80.4%), and intranodular noncalcification (54.2%). Multivariate logistic regression analysis revealed that scattered microcalcification around the tumor\/within the normal gland was an independent risk factor for lateral lymph node metastasis (LLNM) in RET-fusion PTCs (odds ratio 9.79, 95% confidence interval 1.31-72.93, P = .026).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Patients diagnosed with PTC harboring RET fusion presented with distinctive clinical characteristics and sonographic patterns, underscoring the unique diagnostic value of ultrasound examination. It can provide a preoperative noninvasive primary screening method for RET-fusion diagnosis, thus facilitating targeted patients with purposeful molecular sequencing to improve treatment outcomes.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1210\/clinem\/dgae803","type":"journal-article","created":{"date-parts":[[2024,11,18]],"date-time":"2024-11-18T01:01:02Z","timestamp":1731891662000},"page":"e2737-e2743","source":"Crossref","is-referenced-by-count":2,"title":["Clinical and Sonographic Differences Between <i>RET<\/i> Fusion-positive and BRAFV600E in Papillary Thyroid Carcinoma"],"prefix":"10.1210","volume":"110","author":[{"given":"Zixian","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University , Shanghai 200001 ,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenyu","family":"Sun","sequence":"additional","affiliation":[{"name":"Department 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