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<meta name="DC.Title" content="Warthin tumor of the parotid gland: MR-pathologic correlation." />
<meta name="DC.Date" content="1993-01-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
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<meta name="DC.Description" content="PURPOSE To describe the MR appearance of Warthin tumor and correlate the images with pathologic sections.

METHODS MR studies of seven patients with Warthin tumors in the parotid gland were retrospectively reviewed; MR results were compared with pathologic specimens in five instances.

FINDINGS One patient had a bilateral tumor; another had three tumors in the right parotid gland and one in the left. Ten tumors showed well-defined borders; the other, which was accompanied by infection, had an indefinite border only at the upper pole. All had thin capsules not shown on MR. Four showed small lobulations at the margins. Fibrosis appeared as septa-like structures of low signal intensity in three cases. There were areas of hemorrhage with accumulation of hemosiderin in two cases. All tumors had low or intermediate T1-weighted signal intensity, four with high intensity areas of cysts containing cholesterol crystals. On T2W images, two tumors had homogeneously intermediate intensity; the other nine had mixed intensity. Areas of intermediate intensity were correlated with abundant epithelial tissues; focal high-intensity areas were correlated with cysts and/or areas of predominant lymphoid proliferation.

CONCLUSIONS MR findings such as bilaterality and/or multiplicity, well-defined margins, and predominantly intermediate signal intensity on T1W and T2W images with focal areas of high signal intensities on T1W images suggest Warthin tumor, but are not pathognomonic." />
<meta name="DC.Contributor" content="M Minami" />
<meta name="DC.Contributor" content="H Tanioka" />
<meta name="DC.Contributor" content="K Oyama" />
<meta name="DC.Contributor" content="Y Itai" />
<meta name="DC.Contributor" content="M Eguchi" />
<meta name="DC.Contributor" content="K Yoshikawa" />
<meta name="DC.Contributor" content="T Murakami" />
<meta name="DC.Contributor" content="Y Sasaki" />
<meta name="article:published_time" content="1993-01-01" />
<meta name="citation_title" content="Warthin tumor of the parotid gland: MR-pathologic correlation." />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;PURPOSE&lt;/h3&gt;
&lt;p&gt;To describe the MR appearance of Warthin tumor and correlate the images with pathologic sections.&lt;/p&gt;&lt;h3&gt;METHODS&lt;/h3&gt;
&lt;p&gt;MR studies of seven patients with Warthin tumors in the parotid gland were retrospectively reviewed; MR results were compared with pathologic specimens in five instances.&lt;/p&gt;&lt;h3&gt;FINDINGS&lt;/h3&gt;
&lt;p&gt;One patient had a bilateral tumor; another had three tumors in the right parotid gland and one in the left. Ten tumors showed well-defined borders; the other, which was accompanied by infection, had an indefinite border only at the upper pole. All had thin capsules not shown on MR. Four showed small lobulations at the margins. Fibrosis appeared as septa-like structures of low signal intensity in three cases. There were areas of hemorrhage with accumulation of hemosiderin in two cases. All tumors had low or intermediate T1-weighted signal intensity, four with high intensity areas of cysts containing cholesterol crystals. On T2W images, two tumors had homogeneously intermediate intensity; the other nine had mixed intensity. Areas of intermediate intensity were correlated with abundant epithelial tissues; focal high-intensity areas were correlated with cysts and/or areas of predominant lymphoid proliferation.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS&lt;/h3&gt;
&lt;p&gt;MR findings such as bilaterality and/or multiplicity, well-defined margins, and predominantly intermediate signal intensity on T1W and T2W images with focal areas of high signal intensities on T1W images suggest Warthin tumor, but are not pathognomonic.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
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<meta name="citation_publication_date" content="1993/01/01" />
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<meta name="citation_author" content="M Minami" />
<meta name="citation_author_institution" content="Department of Radiology, University of Tokyo Hospital, Japan." />
<meta name="citation_author" content="H Tanioka" />
<meta name="citation_author_institution" content="Department of Radiology, University of Tokyo Hospital, Japan." />
<meta name="citation_author" content="K Oyama" />
<meta name="citation_author_institution" content="Department of Radiology, University of Tokyo Hospital, Japan." />
<meta name="citation_author" content="Y Itai" />
<meta name="citation_author_institution" content="Department of Radiology, University of Tokyo Hospital, Japan." />
<meta name="citation_author" content="M Eguchi" />
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<meta name="citation_author" content="K Yoshikawa" />
<meta name="citation_author_institution" content="Department of Radiology, University of Tokyo Hospital, Japan." />
<meta name="citation_author" content="T Murakami" />
<meta name="citation_author_institution" content="Department of Radiology, University of Tokyo Hospital, Japan." />
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<meta name="twitter:title" content="Warthin tumor of the parotid gland: MR-pathologic correlation." />
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<meta name="twitter:description" content="PURPOSE To describe the MR appearance of Warthin tumor and correlate the images with pathologic sections.

METHODS MR studies of seven patients with Warthin tumors in the parotid gland were retrospectively reviewed; MR results were compared with pathologic specimens in five instances.

FINDINGS One patient had a bilateral tumor; another had three tumors in the right parotid gland and one in the left. Ten tumors showed well-defined borders; the other, which was accompanied by infection, had an indefinite border only at the upper pole. All had thin capsules not shown on MR. Four showed small lobulations at the margins. Fibrosis appeared as septa-like structures of low signal intensity in three cases. There were areas of hemorrhage with accumulation of hemosiderin in two cases. All tumors had low or intermediate T1-weighted signal intensity, four with high intensity areas of cysts containing cholesterol crystals. On T2W images, two tumors had homogeneously intermediate intensity; the other nine had mixed intensity. Areas of intermediate intensity were correlated with abundant epithelial tissues; focal high-intensity areas were correlated with cysts and/or areas of predominant lymphoid proliferation.

CONCLUSIONS MR findings such as bilaterality and/or multiplicity, well-defined margins, and predominantly intermediate signal intensity on T1W and T2W images with focal areas of high signal intensities on T1W images suggest Warthin tumor, but are not pathognomonic." />
<meta name="og-title" property="og:title" content="Warthin tumor of the parotid gland: MR-pathologic correlation." />
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<meta name="og-description" property="og:description" content="PURPOSE To describe the MR appearance of Warthin tumor and correlate the images with pathologic sections.

METHODS MR studies of seven patients with Warthin tumors in the parotid gland were retrospectively reviewed; MR results were compared with pathologic specimens in five instances.

FINDINGS One patient had a bilateral tumor; another had three tumors in the right parotid gland and one in the left. Ten tumors showed well-defined borders; the other, which was accompanied by infection, had an indefinite border only at the upper pole. All had thin capsules not shown on MR. Four showed small lobulations at the margins. Fibrosis appeared as septa-like structures of low signal intensity in three cases. There were areas of hemorrhage with accumulation of hemosiderin in two cases. All tumors had low or intermediate T1-weighted signal intensity, four with high intensity areas of cysts containing cholesterol crystals. On T2W images, two tumors had homogeneously intermediate intensity; the other nine had mixed intensity. Areas of intermediate intensity were correlated with abundant epithelial tissues; focal high-intensity areas were correlated with cysts and/or areas of predominant lymphoid proliferation.

CONCLUSIONS MR findings such as bilaterality and/or multiplicity, well-defined margins, and predominantly intermediate signal intensity on T1W and T2W images with focal areas of high signal intensities on T1W images suggest Warthin tumor, but are not pathognomonic." />
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      <h1 class="highwire-cite-title" id="page-title">Warthin tumor of the parotid gland: MR-pathologic correlation.</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">M Minami</span>, <span class="highwire-citation-author" data-delta="1">H Tanioka</span>, <span class="highwire-citation-author" data-delta="2">K Oyama</span>, <span class="highwire-citation-author" data-delta="3">Y Itai</span>, <span class="highwire-citation-author" data-delta="4">M Eguchi</span>, <span class="highwire-citation-author" data-delta="5">K Yoshikawa</span>, <span class="highwire-citation-author" data-delta="6">T Murakami</span> and <span class="highwire-citation-author" data-delta="7">Y Sasaki</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">January 1993,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">14 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">209-214; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-5672--6822403782" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">M Minami </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'>Department of Radiology, University of Tokyo Hospital, Japan.</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=M%2BMinami%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Minami%20M&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AM%2BMinami%2B" rel="nofollow" class="" 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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 14</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 1 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Jan 1993 </div></div>
      
      
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