{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T05:16:19Z","timestamp":1769836579219,"version":"3.49.0"},"reference-count":0,"publisher":"Grigore T. Popa University of Medicine and Pharmacy","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arch Clin Cases"],"abstract":"<jats:p>Some of the patients with anaplastic thyroid carcinomas have a coexistent differentiated thyroid cancer, sustaining the hypothesis that this cancer may develop from more differentiated tumors. We describe a case with a collision tumor of the thyroid, defined as a neoplastic lesion composed of two distinct cell populations, with distinct borders. The patient presented during the COVID-19 pandemic with dysphonia, dyspnea, multinodular goiter and a painless, rapidly enlarging, left cervical swelling. She had been first time diagnosed with left nodular goiter in 2007, with an indication for surgery, which she declined. After partial excision of the left latero-cervical adenopathy, the pathological analysis showed massive lymph node metastasis from anaplastic thyroid cancer. A total thyroidectomy was done; the postoperative pathological exam identified a papillary thyroid microcarcinoma in the right lobe and an anaplastic thyroid cancer in the left lobe. Postoperatively, levothyroxine treatment was started and the patient was referred to radiotherapy. This case highlights the importance of urgent management of some cases with compressive multinodular goiter, even during the COVID-19 pandemic.<\/jats:p>","DOI":"10.22551\/2021.33.0804.10189","type":"journal-article","created":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T07:40:31Z","timestamp":1640072431000},"page":"64-71","source":"Crossref","is-referenced-by-count":5,"title":["Collision tumor of the thyroid \u2013 a challenge during the COVID-19 pandemic"],"prefix":"10.22551","volume":"8","author":[{"name":"Department of Internal Medicine II, Discipline of Endocrinology, \u201cVictor Babe\u0219\u201d University of Medicine and Pharmacy Timisoara, Romania","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mihaela","family":"Vlad","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Department of Endocrinology, Emergency County Hospital Timisoara, Romania","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Centre for Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, \u201cVictor Babe\u0219\u201d University of Medicine and Pharmacy, Timi\u0219oara, Romania","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ana","family":"Corlan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Department of Internal Medicine II, Discipline of Endocrinology, \u201cVictor Babe\u0219\u201d University of Medicine and Pharmacy Timisoara, Romania; Department of Endocrinology, Emergency County Hospital Timisoara, Romania; Centre for Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, \u201cVictor Babe\u0219\u201d University of Medicine and Pharmacy, Timi\u0219oara, Romania","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melania","family":"Balas","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Department of Internal Medicine II, Discipline of Endocrinology, \u201cVictor Babe\u0219\u201d University of Medicine and Pharmacy Timisoara, Romania; Department of Endocrinology, Emergency County Hospital Timisoara, Romania; Centre for Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, \u201cVictor Babe\u0219\u201d University of Medicine and Pharmacy, Timi\u0219oara, Romania","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"9837","published-online":{"date-parts":[[2021,12,18]]},"container-title":["Archive of Clinical Cases"],"original-title":[],"deposited":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T07:40:33Z","timestamp":1640072433000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.clinicalcases.eu\/index.php\/acc\/article\/view\/637"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,18]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2021,12,18]]}},"URL":"https:\/\/doi.org\/10.22551\/2021.33.0804.10189","relation":{},"ISSN":["2360-6975","2360-6975"],"issn-type":[{"value":"2360-6975","type":"print"},{"value":"2360-6975","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12,18]]}}}