Hearing Loss -thyroncus syndrome, recognized as Pendred Syndrome （PDS）, is a rare autosomal reces-sive inherited disease characterized as thyroncus and sensorineual hearing loss. The pathogenic gene is located at chromosome 7q. Gene mutation leads to pendrin protein dysfunction, therefore to result in related symptoms. This paper points out the pathogeny, clinical manifestations and essentials of diagnoses of PDS and illust...
