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<article article-type="case-report" dtd-version="1.0" xml:lang="en" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">KJIM</journal-id>
<journal-title-group>
<journal-title>The Korean Journal of Internal Medicine</journal-title><abbrev-journal-title>Korean J Intern Med</abbrev-journal-title></journal-title-group>
<issn pub-type="ppub">1226-3303</issn>
<issn pub-type="epub">2005-6648</issn>
<publisher>
<publisher-name>The Korean Association of Internal Medicine</publisher-name></publisher></journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3904/kjim.2015.396</article-id>
<article-id pub-id-type="publisher-id">kjim-2015-396</article-id>
<article-categories>
<subj-group>
<subject>Image of interest</subject></subj-group></article-categories>
<title-group>
<article-title>Massive thyroid goiter: an unusual cause of aspiration pneumonia</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name><surname>Chen</surname><given-names>Ming-Tsung</given-names></name>
<xref ref-type="aff" rid="af1-kjim-2015-396"/>
</contrib>
<contrib contrib-type="author">
<name><surname>Liu</surname><given-names>Chia-Hsin</given-names></name>
<xref ref-type="corresp" rid="c1-kjim-2015-396"/>
<xref ref-type="aff" rid="af1-kjim-2015-396"/>
</contrib>
<aff id="af1-kjim-2015-396">
Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, <country>Taiwan</country></aff>
</contrib-group>
<author-notes>
<corresp id="c1-kjim-2015-396">Correspondence to Chia-Hsin Liu, M.D. Tel: +886-2-8792-3311 Fax: +886-2-8792-7245 E-mail: <email>arron12182012@gmail.com</email></corresp>
</author-notes>
<pub-date pub-type="ppub">
<month>11</month>
<year>2016</year></pub-date>
<pub-date pub-type="epub">
<day>23</day>
<month>9</month>
<year>2016</year></pub-date>
<volume>31</volume>
<issue>6</issue>
<fpage>1196</fpage>
<lpage>1197</lpage>
<history>
<date date-type="received">
<day>9</day>
<month>12</month>
<year>2015</year></date>
<date date-type="rev-recd">
<day>22</day>
<month>01</month>
<year>2016</year></date>
<date date-type="accepted">
<day>20</day>
<month>03</month>
<year>2016</year></date>
</history>
<permissions>
<copyright-statement>Copyright &#x000A9; 2016 The Korean Association of Internal Medicine</copyright-statement>
<copyright-year>2016</copyright-year>
<license>
<license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions>
</article-meta></front>
<body>
<p>A 76-year-old woman, admitted with a 5-day history of fever and productive cough, had been experiencing progressive dyspnea on exertion, dysphagia, and frequent choking on food, for the past few years. Her vital signs were blood pressure, 148/66 mmHg; heart rate, 78 beats per minute; respiration rate, 20 breaths per minute; body temperature, 38.7&#x000b0;C. Physical examination revealed a large, soft, painless goiter in front of her neck (<xref rid="f1-kjim-2015-396" ref-type="fig">Fig. 1A</xref>). Chest X-ray revealed a neck mass with marked deviation of the trachea, and patchy opacities over the right lung field (<xref rid="f1-kjim-2015-396" ref-type="fig">Fig. 1B</xref>). Neck computed tomography revealed multiple heterogeneous enhancing nodules (up to 13.6 cm along the long axis) extending from the retropharyngeal region into the upper mediastinum, compressing and displacing the trachea, esophagus, and right internal jugular vein to the right (<xref rid="f2-kjim-2015-396" ref-type="fig">Fig. 2</xref>). Serum thyrotropin and free thyroxine levels were 0.15 &#x003bc;IU/mL (normal range, 0.25 to 5) and 0.84 ng/dL (normal range, 0.8 to 2), respectively. An intravenous piperacillin/tazobactam injection for aspiration pneumonia resolved her clinical symptoms. Fine-needle aspiration biopsy showed a benign follicular nodule. She is scheduled for total thyroidectomy.</p>
<p>Thyroid nodule is a common disorder, especially in women; its frequency increases with age and iodine deficiency. The symptoms depend on the presence of thyroid dysfunction and the growth rate of the goiter. Most patients are asymptomatic. Progressive enlargement of a multinodular thyroid goiter can cause compression of the trachea, esophagus, and vessels, resulting in cough, dyspnea, dysphagia, or feeling of a lump in the throat. In rare cases, esophageal compression secondary to retrosternal goiter may cause dysphagia and esophagopharyngeal reflux, leading to recurrent aspiration pneumonia, as in our case. Thyroidectomy can rapidly relieve obstructive symptoms for patients with very large goiters. Furthermore, radioiodine therapy is an alternative for poor surgical candidates or for those who wish to avoid surgery.</p>
</body>
<back>
<fn-group>
<fn fn-type="conflict"><p>No potential conflict of interest relevant to this article was reported.</p></fn>
</fn-group>
<sec sec-type="display-objects">
<title>Figures</title>
<fig id="f1-kjim-2015-396" position="float">
<label>Figure 1.</label><caption><p>(A) A large neck goiter. (B) Chest X-ray showing a huge neck mass compression with tracheal narrowing and displacement, and patchy opacites in the right lung.</p></caption>
<graphic xlink:href="kjim-2015-396f1.tif"/>
</fig>
<fig id="f2-kjim-2015-396" position="float">
<label>Figure 2.</label><caption><p>(A) Coronal computed tomography (CT) and (B) axial CT scan showing multiple heterogeneous nodules in the neck with compression and displacement of trachea (black arrows), right internal jugular vein (white arrow), and esophagus (yellow arrow).</p></caption>
<graphic xlink:href="kjim-2015-396f2.tif"/>
</fig>
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</back></article>