The external ear may become whole or partially calcified in a number of disorders. The calcium deposition may be in the auricular cartilage in conditions with chondritis.
Synonyms: porcelain ear, petrified ear
Conditions associated with a calcified ear:
(1) chronic ear trauma
(2) relapsing polychondritis
(3) disorder of calcium homeostasis with dystrophic calcification or calcinosis cutis
Examples of disorders of calcium homeostasis:
(1) pseudopseudohypoparathyroidism
(2) Primrose syndrome
Differential diagnosis: calcified cyst
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