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Thyroid function and morphology in patients affected by Williams syndrome.
Stefano Stagi1, Giuseppe Bindi, Anna Silvia Neri
1Paediatric Endocrinology Unit, Univeristy of Florence, A. Meyer Children's Hospital, Florence, Italy.
Clinical Endocrinology
|September 27, 2005
Summary
Williams syndrome (WS) patients frequently exhibit thyroid function and morphology abnormalities. Thyroid hypoplasia is common, and monitoring thyroid function with ultrasound screening is recommended for early detection.
Area of Science:
- Endocrinology
- Genetics
- Pediatrics
Background:
- Williams syndrome (WS) is a genetic disorder associated with various medical complications.
- Thyroid dysfunction and structural abnormalities are potential health concerns in WS patients.
Purpose of the Study:
- To determine the prevalence of thyroid function and morphology abnormalities in individuals with Williams syndrome.
- To investigate the relationship between thyroid function status and thyroid morphology in WS.
Main Methods:
- Evaluated serum levels of free-T3, free-T4, TSH, thyroperoxidase antibodies (TPOA), and thyroglobulin antibodies (TgA).
- Conducted thyroid ultrasonography in 20 patients with WS (aged 1.7-34.9 years).
- Analyzed data to assess thyroid function and identify morphological variations.
Main Results:
- Subclinical hypothyroidism (15%) and overt hypothyroidism (10%) were identified.
- Thyroid antibodies were negative in all participants.
- Thyroid hypoplasia was observed in 70% of patients, with hemiagenesis in 5%. Only 25% had normal thyroid volume. Hypothyroidism was associated with thyroid hypoplasia.
Conclusions:
- This study confirms frequent thyroid function and morphology alterations in Williams syndrome.
- Thyroid hypoplasia is a common finding in WS patients.
- Regular monitoring of thyroid function and consideration of thyroid ultrasound screening are recommended for individuals with WS, particularly those with thyroid function changes.