Three out of every 1,000 children have Pendred syndrome, an inherited disorder that accounts for up to eight percent of all hearing loss cases. In addition to auditory effects, the condition can also cause goiters at the neck. Pendred syndrome can be difficult to diagnose but various treatment methods are available.
In 1896, English physician Vaughan Pendred examined the curious case of an Irish family with two daughters, both of whom had large goiters and were deaf in both ears and mute. Pendred syndrome is a genetic condition characterized by both thyroid problems and a varying degree of hearing loss. Scientists found that children with the condition are born with malformations of certain bones in the ear that, in rare cases, create problems with balance.
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