Idiopathic bilateral auricular petrification.

Auricular petrification is a rare diagnosis and presents an interesting therapeutic challenge. Fewer than 160 cases have been reported in the literature since the first description by Bochdalek in 1866. The most common etiology is ectopic calcification. It may also result from injurious processes including frostbite, physical trauma, inflammatory conditions, and various endocrinopathies. We report an incidental finding of idiopathic bilateral auricular petrification in a 40-year-old man presenting with idiopathic unilateral sensorineural deafness.