Pendred syndrome with hyperthyroidism
- VernacularTitle:Pendred syndrome with hyperthyroidism
- Author:
Yoshiro KUSANO
1
Author Information
- Keywords: Pendred syndrome; hyperthyroidism; SLC26A4gene
- From:Journal of Rural Medicine 2020;15(4):217-220
- CountryJapan
- Language:English
- Abstract: Objectives: Pendred syndrome is an autosomal recessive disorder characterized by the combination of sensorineural deafness and goiter and is caused by biallelic mutations in the SLC26A4/PDS gene. Thyroid function is generally reported as euthyroid or hypothyroid in this condition. We present a case of Pendred syndrome with hyperthyroidism.Patient: An 83-year-old woman with congenital deaf–mutism presented with complaints of nausea. She developed a large goiter and had hearing impairment. Her hearing level was 105 dB in both ears. She presented with hyperthyroidism and was treated with thiamazole.Results: She had a homozygous mutation in c.1579A>C:p.T527P of the SLC26A4 gene, confirming a diagnosis of Pendred syndrome.Conclusion: Pendred syndrome may develop into hyperthyroidism if the size of the goiter increases. Moreover, a homozygous mutation in c.1579A>C:p.T527P of the SLC26A4 gene, which was previously reported to be associated with nonsyndromic hearing loss with enlarged vestibular aqueduct, may also cause Pendred syndrome.
