Is hearing loss linked to Noonan’s?

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Is a child’s auditory neuropathy (hearing loss in which the outer hair cells within the cochlea are present and functional, but sound information is not faithfully transmitted to the auditory nerve and brain properly) as a result of having Noonan Syndrome?

Some children with Noonan Syndrome have problems with hearing, most commonly “glue ear”. It’s possible that the child’s condition was linked to Noonan Syndrome but more information was needed. There were genetic tests which should be able to tell if the condition was linked causally. People with Leopard Syndrome, closely related to NS, often suffered hearing problems.

Question asked and answered at our family’s day 2015