Otoscopy :: THE PINNA :: 6_1
 THE PINNA  
Darwin's tubercle

Darwin's tubercle

Description : Darwin's tubercle is a small cartilaginous protuberance, most commonly located along the concave edge of the posterosuperior margin of the helix, which projects anteriorly.

This atavistic remnant represents the apex of the anthropoid ear and suggests a common ancestry between man and ape, and for this reason it is called Darwin's tubercle.

Darwin's tubercles are inherited by means of an autosomal dominant gene which has a variable expressivity.

These tubercles have no clinical significance.

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