External auditory canal exostoses
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Exostosis of the external auditory canal (also known asSurfer's ear), is an abnormal bone growth within the ear canal. It is brought about by exposure to cold wind and water combined, producing a super-cooling of the ear canal.
Radiographic features
- broad based or more focal circumferential bony overgrowth of the osseous external auditory canal
- bilateral
Differential diagnosis
External auditory canal osteoma: unilateral focal, pedunculated bony overgrowth.
See also
-<p><strong>Exostosis of the external auditory canal</strong> (also known as <strong>Surfer's ear</strong>), is an abnormal bone growth within the ear canal. It is brought about by exposure to cold wind and water combined, producing a super-cooling of the ear canal.</p><h4>See also</h4><ul><li><a href="/articles/exostosis">exostosis</a></li></ul>- +<p><strong>Exostosis of the external auditory canal</strong> (also known as <strong>Surfer's ear</strong>), is an abnormal bone growth within the ear canal. It is brought about by exposure to cold wind and water combined, producing a super-cooling of the ear canal.</p><h4>Radiographic features</h4><ul>
- +<li>broad based or more focal circumferential bony overgrowth of the osseous external auditory canal</li>
- +<li>bilateral</li>
- +</ul><h4>Differential diagnosis</h4><p><a title="External auditory canal osteoma" href="/articles/external-auditory-canal-osteoma">External auditory canal osteoma</a>: unilateral focal, pedunculated bony overgrowth.</p><h4>See also</h4><ul><li><a href="/articles/exostosis">exostosis</a></li></ul>
References changed:
- 3. Harnsberger HR, Glastonbury CM, Michel MA et-al. Diagnostic Imaging: Head and Neck. Lippincott Williams & Wilkins. (2010) ISBN:1931884781. <a href="http://books.google.com/books?vid=ISBN1931884781">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/1931884781">Find it at Amazon</a><span class="ref_v3"></span>
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Image 2 CT (bone window) ( update )
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Case 43
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