{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T16:46:57Z","timestamp":1753894017432,"version":"3.41.2"},"reference-count":21,"publisher":"Pensoft Publishers","issue":"1","license":[{"start":{"date-parts":[[2025,2,25]],"date-time":"2025-02-25T00:00:00Z","timestamp":1740441600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["FM"],"abstract":"<jats:p><jats:bold>Aim<\/jats:bold>: Papillary thyroid carcinoma (PTC) subtypes are known to differ from each other in terms of the features associated with each subtype. The aim of this study was to determine whether the incidence of PTC subtypes differs in the presence or absence of Hashimoto\u2019s thyroiditis.<\/jats:p>\n          <jats:p><jats:bold>Materials and methods<\/jats:bold>: A total of 1195 patients were included and evaluated for the presence of nodules, divided into two groups: those with Hashimoto\u2019s thyroiditis and thyroid nodules (HT) and those with thyroid nodules only (non-HT). The two groups were compared with respect to demographics, clinical, ultrasonographic and cytological characteristics of thyroid nodules, and the presence of PTC.<\/jats:p>\n          <jats:p><jats:bold>Results<\/jats:bold>: Of the patients, 943 (78.9%) were diagnosed with thyroid nodules without HT (non-HT group) and 252 (21.1%) with thyroid nodules with HT (HT group). The incidence of indeterminate cytology (Bethesda category III) was significantly higher in the HT group than in the non-HT group (18.60% vs. 10.80%, <jats:italic>p<\/jats:italic>=0.001). The incidence of PTC was also statistically significantly higher in the HT group than in the non-HT group (22.2% vs. 5.7%, <jats:italic>p<\/jats:italic>=0.001). However, no correlation was observed between the histopathological subtypes of PTC and the presence of Hashimoto\u2019s thyroiditis.<\/jats:p>\n          <jats:p><jats:bold>Conclusion<\/jats:bold>: Hashimoto\u2019s thyroiditis did not appear to alter the incidence of PTC subtypes. However, PTC was more frequently observed in thyroid nodules associated with HT compared to those without HT.<\/jats:p>","DOI":"10.3897\/folmed.67.e138135","type":"journal-article","created":{"date-parts":[[2025,2,25]],"date-time":"2025-02-25T12:23:09Z","timestamp":1740486189000},"source":"Crossref","is-referenced-by-count":0,"title":["The effect of the presence of Hashimoto\u2019s thyroiditis on the frequency of papillary thyroid carcinoma subtypes"],"prefix":"10.3897","volume":"67","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0341-4076","authenticated-orcid":true,"given":"Zekiye B\u00fc\u015fra","family":"\u015eahin","sequence":"first","affiliation":[{"name":"Gaziantep University School of Medicine, Gaziantep, Turkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5105-0292","authenticated-orcid":true,"given":"Zeynel Abidin","family":"Sayiner","sequence":"additional","affiliation":[{"name":"Gaziantep SANKO University School of Medicine, Gaziantep, Turkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2786-6616","authenticated-orcid":true,"given":"Ersin","family":"Akarsu","sequence":"additional","affiliation":[{"name":"Gaziantep University School of Medicine, Gaziantep, Turkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2258","published-online":{"date-parts":[[2025,2,25]]},"reference":[{"key":"138135_B1","doi-asserted-by":"crossref","unstructured":"1. 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