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      <h1 class="highwire-cite-title" id="page-title">Osteoid Osteoma Invading the Posterior Labyrinth of the Petrous Bone</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">E. Dugert</span>, <span class="highwire-citation-author" data-delta="1">S. Lagleyre</span>, <span class="highwire-citation-author" data-delta="2">A. Brouchet</span>, <span class="highwire-citation-author" data-delta="3">O. Deguine</span>, <span class="highwire-citation-author" data-delta="4">C. Cognard</span> and <span class="highwire-citation-author" data-delta="5">F. Bonneville</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">October 2010,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(9) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1764-1766; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A1910 </span></div>
  
  
  
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<p id="p-1"><strong>SUMMARY:</strong> We report a painless osteoid osteoma of the inner ear in an elderly woman presenting with hearing loss, tinnitus, and vertigo. CT showed a heterogeneous mass containing calcifications involving the posterior labyrinth, which heterogeneously enhanced on postcontrast MR images. Osteoid osteoma should be included in the differential diagnosis of an osteolytic petrous bone lesion with central calcification and enhancement.</p>
</div></div><div class="section glossary" id="glossary-1"><h2>Abbreviations</h2><dl id="def-list-1"><dt id="def-item-1">OO<span class="def-item-dt-sep"></span></dt><dd>osteoid osteoma</dd></dl></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">Copyright © American Society of Neuroradiology</li></ul><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div><a href="http://ajnr-stage2.stage.highwire.org/content/31/9/1764.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-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 31</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 9 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Oct 2010 </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">E.</span> <span class="nlm-surname">Dugert</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Lagleyre</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Brouchet</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">O.</span> <span class="nlm-surname">Deguine</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">C.</span> <span class="nlm-surname">Cognard</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">F.</span> <span class="nlm-surname">Bonneville</span></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">Oct 2010, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(9) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1764-1766; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A1910 </span></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">E.</span> <span class="nlm-surname">Dugert</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Lagleyre</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Brouchet</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">O.</span> <span class="nlm-surname">Deguine</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">C.</span> <span class="nlm-surname">Cognard</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">F.</span> <span class="nlm-surname">Bonneville</span></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">Oct 2010, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(9) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1764-1766; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A1910 </span></div>
  
  
  
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