{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T16:09:40Z","timestamp":1790352580450,"version":"4.1.0"},"reference-count":28,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2024,12,17]],"date-time":"2024-12-17T00:00:00Z","timestamp":1734393600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100020950","name":"National Science and Technology Council","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100020950","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Histopathology"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:sec><jats:title>Aims<\/jats:title><jats:p>The diagnosis of intranodal thyroid inclusions (ITIs) is controversial. We aim to investigate their clinicopathologic features and utilize immunohistochemistry (IHC) to support the diagnosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and Results<\/jats:title><jats:p>Forty\u2010one cases of incidentally found ITIs between 2019 and 2023 were categorized into three groups, namely, Group A: thyroidectomy due to papillary thyroid carcinoma (PTC) with regional lymph node dissection (<jats:italic>n<\/jats:italic>\u2009=\u200933), Group B: thyroidectomy due to benign thyroid disease with incidental perithyroid lymph node sampling (<jats:italic>n<\/jats:italic>\u2009=\u20094), and Group C: surgery due to other head and neck cancers with lateral neck lymph node dissection (<jats:italic>n<\/jats:italic>\u2009=\u20094). The overall incidence of ITIs was 4.17% (33\/792) in Group A and 0.76% (4\/524) in Group C. All ITIs sufficient for study were negative for BRAF VE1 IHC. HBME\u20101 and galectin\u20103 IHC were also negative in all analysed cases. Although various degrees of nuclear changes were present in ITIs, classical PTC\u00a0nuclear features, i.e. pseudoinclusions, nuclear grooves, and chromatin alterations, were less commonly seen (0%, 29.3%, and 51.2%, respectively) than in metastatic PTC (90%, 95%, and 95%, respectively) (all <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). Interestingly, 77.3% (17\/22) of cases with lymph node metastasis in Group A had coexistence of ITIs and metastasis in the same lymph node. During follow\u2010up, two cases in Group A had PTC recurrence without accompanying ITIs, while none in Group B or C had recurrent thyroid lesions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>We propose key diagnostic features for ITIs incorporating morphology and BRAF VE1, HBME\u20101, and galectin\u20103 IHC. The distinction between ITIs and metastatic PTC can be clinically relevant.<\/jats:p><\/jats:sec>","DOI":"10.1111\/his.15394","type":"journal-article","created":{"date-parts":[[2024,12,17]],"date-time":"2024-12-17T09:28:37Z","timestamp":1734427717000},"page":"878-890","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Intranodal thyroid inclusions revisited: a morphological analysis and application of <scp>BRAF VE1<\/scp> immunohistochemistry"],"prefix":"10.1111","volume":"86","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7731-6412","authenticated-orcid":false,"given":"Yu\u2010Che","family":"Chuang","sequence":"first","affiliation":[{"name":"Department of Pathology and Laboratory Medicine Taipei Veterans General Hospital  Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4408-8588","authenticated-orcid":false,"given":"Ying\u2010Ju","family":"Kuo","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine Taipei Veterans General Hospital  Taipei Taiwan"},{"name":"Department of Pathology, School of Medicine National Yang Ming Chiao Tung University  Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4299-2784","authenticated-orcid":false,"given":"Jen\u2010Fan","family":"Hang","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine Taipei Veterans General Hospital  Taipei Taiwan"},{"name":"Department of Pathology, School of Medicine National Yang Ming Chiao Tung University  Taipei Taiwan"},{"name":"Institute of Clinical Medicine National Yang Ming Chiao Tung University  Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,12,17]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/00000658-194202000-00001"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(196908)24:2<302::AID-CNCR2820240213>3.0.CO;2-V"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(1967)20:1<103::AID-CNCR2820200116>3.0.CO;2-S"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(197004)25:4<803::AID-CNCR2820250409>3.0.CO;2-P"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-015-3786-3"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/modpathol.3800235"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/modpathol.3800705"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1309\/AJCPCGCZZ1OYF0IC"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1309\/044V86JN2W3CN5YB"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1177\/10668969211033526"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1097\/PAI.0000000000000515"},{"key":"e_1_2_11_13_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13000-023-01370-4"},{"key":"e_1_2_11_14_1","doi-asserted-by":"publisher","DOI":"10.1097\/PAS.0000000000002256"},{"key":"e_1_2_11_15_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.1965.03090140009001"},{"key":"e_1_2_11_16_1","first-page":"633","article-title":"Thyroid follicle inclusions in cervical lymph nodes","volume":"77","author":"Gerard\u2010Marchant R","year":"1964","journal-title":"Arch. 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