{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T03:58:22Z","timestamp":1777694302936,"version":"3.51.4"},"reference-count":19,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/100000049","name":"national institute on aging","doi-asserted-by":"publisher","award":["P30 AG044271"],"award-info":[{"award-number":["P30 AG044271"]}],"id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Clin Med Insights Case Rep"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction:<\/jats:title>\n                    <jats:p>The increasing use of advanced imaging modalities has led to a growing number of Incidental thyroid nodules (ITNs). Although most ITNs are benign, dedicated evaluation with a thyroid ultrasound (US) is strongly recommended to assess malignancy risk with a dedicated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Presentation:<\/jats:title>\n                    <jats:p>We report a case of a 66-year-old male with large fluorodeoxyglucose (FDG)-avid right thyroid mass identified incidentally on a positron emission tomography (PET) scan. Initial fine needle aspiration (FNA) suggested benign pathology. However, subsequent thyroid US demonstrated highly suspicious features concerning for lymphoma or sarcoma, prompting a core biopsy with flow cytometry and immunohistochemistry, which confirmed a diagnosis of small lymphocytic B-cell infiltrating the thyroid gland.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>This case underscores the diagnostic limitation of FNA in detecting thyroid lymphoma and highlights the critical role of thyroid US in identifying concerning features. When US findings are highly suspicious for lymphoma, additional diagnostic approaches \u2013 including core biopsy with flow cytometry and immunohistochemistry \u2013 are essential to ensure accurate diagnosis and appropriate management.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/11795476251410401","type":"journal-article","created":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T11:20:16Z","timestamp":1769426416000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["False Negative Thyroid Biopsy: A Case Report Highlighting the Importance of Ultrasound Evaluation"],"prefix":"10.1177","volume":"19","author":[{"given":"Fernando","family":"Reyes San Martin","sequence":"first","affiliation":[{"name":"Department of Endocrinology, UT Health San Antionio, TX, USA"},{"name":"GRECC, South Texas Veterans Health Care System, San Antonio, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis","family":"Chozet","sequence":"additional","affiliation":[{"name":"Department of Endocrinology, UT Health San Antionio, TX, USA"},{"name":"GRECC, South Texas Veterans Health Care System, San Antonio, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maureen","family":"Koops","sequence":"additional","affiliation":[{"name":"Department of Endocrinology, UT Health San Antionio, TX, USA"},{"name":"GRECC, South Texas Veterans Health Care System, San Antonio, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8971-9542","authenticated-orcid":false,"given":"Tiffany Marie","family":"Cortes","sequence":"additional","affiliation":[{"name":"Department of Endocrinology, UT Health San Antionio, TX, USA"},{"name":"GRECC, South Texas Veterans Health Care System, San Antonio, TX, USA"},{"name":"School of Medicine, Barshop Institute for Longevity and Aging, UT Health San Antionio, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,1,26]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacr.2017.01.046"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacr.2014.09.038"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1177\/10507256251363120"},{"issue":"3","key":"e_1_3_3_5_2","article-title":"Thyroid B-cell lymphoma in the background of Hashimoto\u2019s thyroiditis: a case report and literature review","volume":"16","author":"Ghafouri AM","year":"2024","unstructured":"Ghafouri AM, Alzaidi S, Al-Kaabi BB, Awadh MA, Bakhsh D, Alharbi A. Thyroid B-cell lymphoma in the background of Hashimoto\u2019s thyroiditis: a case report and literature review. Cureus. 2024;16(3):e57359.","journal-title":"Cureus"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjsurg.2024.115927"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/dc.24526"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.2967\/jnumed.117.198085"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.crad.2015.10.032"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12885-022-10035-2"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4939-8935-5_25"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.5603\/EP.a2022.0028"},{"key":"e_1_3_3_13_2","unstructured":"National Comprehensive Cancer Network. Referenced with permission from the NCCN clinical practice guidelines in oncology (NCCN Guidelines\u00ae) for NCCN Guidelines V.1.2026 NCCN.org"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1089\/thy.2021.0613"},{"issue":"3","key":"e_1_3_3_15_2","first-page":"202","article-title":"Small lymphocytic lymphoma of the thyroid mimicking plasmacytoma","volume":"3","author":"Gill M","year":"2014","unstructured":"Gill M, Batra A, Sangwaiya A, Shakya S, Gupta S, Sen R. Small lymphocytic lymphoma of the thyroid mimicking plasmacytoma. Eur Thyroid J. 2014;3(3):202-205.","journal-title":"Eur Thyroid J"},{"issue":"3","key":"e_1_3_3_16_2","first-page":"23","article-title":"Simultaneous occurrence of medullary and papillary carcinomas of the thyroid gland with metastases of papillary carcinoma to the cervical lymph nodes and the coinciding small B-cell lymphocytic lymphoma of the lymph nodes \u2013 a case report","volume":"55","author":"Bocian A","year":"2004","unstructured":"Bocian A, Kopczynski J, Rieske P, et al. Simultaneous occurrence of medullary and papillary carcinomas of the thyroid gland with metastases of papillary carcinoma to the cervical lymph nodes and the coinciding small B-cell lymphocytic lymphoma of the lymph nodes \u2013 a case report. Pol J Pathol. 2004;55(3):23-30.","journal-title":"Pol J Pathol"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/dc.20894"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF01726417"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1186\/1756-6614-6-1"},{"key":"e_1_3_3_20_2","unstructured":"PDQ Adult Treatment Editorial Board. PDQ Chronic Lymphocytic Leukemia Treatment. 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