Idiopathic auricular ossificans
Reviewer: Nat Pernick, M.D. (see Reviewers page)
Revised: 22 October 2013, last major update December 2006
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
- Ectopic calcification of auricle (“rigid ear”) of unknown etiology
- Very rare (<20 cases reported)
- Cartilaginous replacement by bone
A: grossly normal ear
B: spicules of lamellar bone
C: CT scan shows bony opacities in auricular cartilage
D: osteocytes and cement lines are present
- Specific causes (frostbite, physical trauma, inflammatory conditions, Addison’s disease)
End of Ear > Inflammatory/infectious/autoimmune/systemic disorders > Idiopathic auricular ossificans
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