{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T17:26:47Z","timestamp":1783013207425,"version":"3.54.6"},"reference-count":18,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","license":[{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Medullary thyroid carcinoma (MTC) with tumour-associated granulomas presents a significant diagnostic challenge in tuberculosis (TB)-endemic regions, particularly when thyroid nodules are non-palpable. We report a 75-year-old woman with treated pulmonary TB who presented with dyspnoea and pleural effusion, leading to initial clinical suspicion of TB reactivation. An incidental non-palpable thyroid nodule discovered on ultrasound was revealed to be MTC with epithelioid granulomas on fine-needle aspiration cytology. The absence of a palpable neck mass diverted clinical attention towards pulmonary TB, demonstrating how thyroid malignancy can remain concealed by TB manifestations. Elevated serum calcitonin (620 pg\/mL) and Congo red-positive amyloid deposits confirmed MTC post-thyroidectomy. This case underscores the critical importance of systematic calcitonin testing in granulomatous thyroid lesions, even in non-palpable nodules, to prevent delayed cancer diagnosis in TB-prevalent healthcare settings.<\/jats:p>","DOI":"10.4103\/npmj.npmj_281_25","type":"journal-article","created":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T05:00:11Z","timestamp":1782968411000},"page":"535-538","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Medullary Thyroid Carcinoma Masquerading as Tuberculosis Reactivation: A Case of Diagnostic Concealment in an Occult Thyroid Nodule"],"prefix":"10.4103","volume":"33","author":[{"given":"Ankit","family":"Girepunje","sequence":"first","affiliation":[{"name":"Department of Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arvind","family":"Bhake","sequence":"additional","affiliation":[{"name":"Department of Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anil","family":"Agrawal","sequence":"additional","affiliation":[{"name":"Department of Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keshav","family":"Yadav","sequence":"additional","affiliation":[{"name":"Department of Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suhit","family":"Naseri","sequence":"additional","affiliation":[{"name":"Department of 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