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<meta name="DC.Title" content="IgG4-Related Inflammatory Pseudotumor of the Trigeminal Nerve: Another Component of IgG4-Related Sclerosing Disease?" />
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<meta name="DC.Description" content="SUMMARY: IgG4-related IPTs have been reported in various sites and may form part of the spectrum of systemic IgG4-related sclerosing disease. Some pseudotumors are clinically and radiologically indistinguishable from malignant tumors. We present the first case of an IgG4-related IPT of the trigeminal nerve diagnosed histopathologically without involvement of any of the common sites. The trigeminal nerve pseudotumor may represent a component of IgG4-related sclerosing disease.

ALK
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DWI
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HPF
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IgG
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IgG4
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IMT
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IPT
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&lt;p&gt;IgG4-related IPTs have been reported in various sites and may form part of the spectrum of systemic IgG4-related sclerosing disease. Some pseudotumors are clinically and radiologically indistinguishable from malignant tumors. We present the first case of an IgG4-related IPT of the trigeminal nerve diagnosed histopathologically without involvement of any of the common sites. The trigeminal nerve pseudotumor may represent a component of IgG4-related sclerosing disease.&lt;/p&gt;" />
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<meta name="twitter:title" content="IgG4-Related Inflammatory Pseudotumor of the Trigeminal Nerve: Another Component of IgG4-Related Sclerosing Disease?" />
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<meta name="twitter:description" content="SUMMARY: IgG4-related IPTs have been reported in various sites and may form part of the spectrum of systemic IgG4-related sclerosing disease. Some pseudotumors are clinically and radiologically indistinguishable from malignant tumors. We present the first case of an IgG4-related IPT of the trigeminal nerve diagnosed histopathologically without involvement of any of the common sites. The trigeminal nerve pseudotumor may represent a component of IgG4-related sclerosing disease.

ALK
:   anaplastic lymphoma kinase
DWI
:   diffusion-weighted imaging
HPF
:   high-power field
IgG
:   immunoglobulin G
IgG4
:   immunoglobulin G4
IMT
:   Inflammatory myofibroblastic tumor
IPT
:   inflammatory pseudotumor" />
<meta name="og-title" property="og:title" content="IgG4-Related Inflammatory Pseudotumor of the Trigeminal Nerve: Another Component of IgG4-Related Sclerosing Disease?" />
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<meta name="og-description" property="og:description" content="SUMMARY: IgG4-related IPTs have been reported in various sites and may form part of the spectrum of systemic IgG4-related sclerosing disease. Some pseudotumors are clinically and radiologically indistinguishable from malignant tumors. We present the first case of an IgG4-related IPT of the trigeminal nerve diagnosed histopathologically without involvement of any of the common sites. The trigeminal nerve pseudotumor may represent a component of IgG4-related sclerosing disease.

ALK
:   anaplastic lymphoma kinase
DWI
:   diffusion-weighted imaging
HPF
:   high-power field
IgG
:   immunoglobulin G
IgG4
:   immunoglobulin G4
IMT
:   Inflammatory myofibroblastic tumor
IPT
:   inflammatory pseudotumor" />
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">M. Katsura</span>, <span class="highwire-citation-author" data-delta="1">A. Morita</span>, <span class="highwire-citation-author" data-delta="2">H. Horiuchi</span>, <span class="highwire-citation-author" data-delta="3">K. Ohtomo</span> and <span class="highwire-citation-author" data-delta="4">T. Machida</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">September 2011,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">32 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E150-E152; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A2256 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-12149--6145221053" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">M. Katsura </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.%2BKatsura%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=Katsura%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.%2BKatsura%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">A. Morita </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=A.%2BMorita%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=Morita%20A&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%3AA.%2BMorita%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">H. Horiuchi </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=H.%2BHoriuchi%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=Horiuchi%20H&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%3AH.%2BHoriuchi%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">K. Ohtomo </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=K.%2BOhtomo%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=Ohtomo%20K&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%3AK.%2BOhtomo%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">T. Machida </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=T.%2BMachida%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=Machida%20T&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%3AT.%2BMachida%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div></div></div>  </div>

  
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<p id="p-2"><strong>SUMMARY:</strong> IgG4-related IPTs have been reported in various sites and may form part of the spectrum of systemic IgG4-related sclerosing disease. Some pseudotumors are clinically and radiologically indistinguishable from malignant tumors. We present the first case of an IgG4-related IPT of the trigeminal nerve diagnosed histopathologically without involvement of any of the common sites. The trigeminal nerve pseudotumor may represent a component of IgG4-related sclerosing disease.</p>
</div></div><div class="section glossary" id="glossary-1"><h2>Abbreviations</h2><dl id="def-list-1"><dt id="def-item-1">ALK<span class="def-item-dt-sep"></span></dt><dd>anaplastic lymphoma kinase<span class="def-item-dd-sep"></span></dd><dt id="def-item-2">DWI<span class="def-item-dt-sep"></span></dt><dd>diffusion-weighted imaging<span class="def-item-dd-sep"></span></dd><dt id="def-item-3">HPF<span class="def-item-dt-sep"></span></dt><dd>high-power field<span class="def-item-dd-sep"></span></dd><dt id="def-item-4">IgG<span class="def-item-dt-sep"></span></dt><dd>immunoglobulin G<span class="def-item-dd-sep"></span></dd><dt id="def-item-5">IgG4<span class="def-item-dt-sep"></span></dt><dd>immunoglobulin G4<span class="def-item-dd-sep"></span></dd><dt id="def-item-6">IMT<span class="def-item-dt-sep"></span></dt><dd>Inflammatory myofibroblastic tumor<span class="def-item-dd-sep"></span></dd><dt id="def-item-7">IPT<span class="def-item-dt-sep"></span></dt><dd>inflammatory pseudotumor</dd></dl></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">© 2011 by American Journal of Neuroradiology</li></ul><div class="license" id="license-1"><p id="p-1">Indicates open access to non-subscribers at <a href="http://www.ajnr.org">www.ajnr.org</a></p></div><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div><a href="http://ajnr-stage2.stage.highwire.org/content/32/8/E150.full" class="hw-link hw-link-article-full-text" data-icon-position="" data-hide-link-title="0">View Full Text</a></div>  </div>

  
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Katsura</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Morita</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Horiuchi</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Ohtomo</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Machida</span></span></span></div>
  
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