Congenital absence of the stapes and oval window with malpositioned facial nerve and anomalous eustachian tube.

Mercedes Álvarez-Buylla Blanco & Miguel Álvarez-Buylla Camino
Introduction: Since in 1995 the first case of absence of stapes was described, several cases were reported. However, its etiology remains unknown. Some authors suggest a genetic cause, without excluding the possibility of embryopathy due to infections or chemical agents. The existence of an associated palatal cleft, in this case, reinforces the hypothesis of a multifactorial origin. Objective: Describe a rare condition in order to know how to suspect it. This condition is frequently associated...
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