Congenital Aural Atresia prevalence in the Argentinian population.

Introduction: Congenital Aural Atresia (CAA) or microtia is a malformation that results in esthetic and functional problems. There is little information on prevalence, considering that Latin American is the most affected region in the world.

Objective: To determine the prevalence of microtia, considering the different ethnical structure of the population.