External auditory canal exostoses
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Exostosis of the external auditory canal (also known as Surfersurfer's ear), is a benign bony overgrowth of the bony external auditory canal brought about by exposure to cold wind and water combined.
Radiographic features
- broad
based-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
- external auditory canal cholesteatoma: typically unilateral bony flakes with scalloping of the adjacent bone
See also
-<p><strong>Exostosis of the external auditory canal</strong> (also known as <strong>Surfer's ear</strong>), is benign bony overgrowth of the bony external auditory canal brought about by exposure to cold wind and water combined.</p><h4>Radiographic features</h4><ul>-<li>broad based or more focal circumferential bony overgrowth of the osseous external auditory canal</li>- +<p><strong>Exostosis of the external auditory canal</strong> (also known as <strong>surfer's ear</strong>), is a benign bony overgrowth of the bony external auditory canal brought about by exposure to cold wind and water combined.</p><h4>Radiographic features</h4><ul>
- +<li>broad-based or more focal circumferential bony overgrowth of the osseous external auditory canal</li>
-<a title="External auditory canal cholesteatoma" href="/articles/external-auditory-canal-cholesteatoma">external auditory canal cholesteatoma</a>: typically unilateral bony flakes with scalloping of the adjacent bone</li>- +<a href="/articles/external-auditory-canal-cholesteatoma">external auditory canal cholesteatoma</a>: typically unilateral bony flakes with scalloping of the adjacent bone</li>
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