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Exostoses

An exostosis (plural: exostoses) is the formation of new bone on the surface of a bone.

When used in the phrases "Cartilaginous exostosis" or "Osteocartilaginous exostosis", it is considered synonymous with Osteochondroma. (Some sources consider the terms to mean the same thing even without qualifiers, but this interpretation is not universal.)

Related conditions

  • Multiple hereditary exostosis (MHE)
  • Subungal exostosis
  • Buccal exostosis
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Large nonobstructing exostoses of the external auditory canal - Brief Article
From Ear, Nose & Throat Journal, 3/1/01 by Christian Deguine

The otoscopic view is that of a left ear with four exostoses, which are asymptomatic but so large that they might cause an obstruction. A large exostosis protrudes from the posterior inferior external auditory canal and another large one from the anterior canal wall. A smaller exostosis involves the superior canal wall, and the smallest one involves the posterior superior canal wall. There is adequate space to admit a suction tip to aspirate debris.

COPYRIGHT 2001 Medquest Communications, Inc.
COPYRIGHT 2001 Gale Group

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