Thyroid dyshormonogenesis

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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Thyroid dyshormonogenesis
Synonyms
Pronounce	N/A
Specialty	N/A
Symptoms	Hypothyroidism, goiter
Complications	Intellectual disability, growth retardation
Onset	Congenital
Duration	Lifelong
Types	N/A
Causes	Genetic mutations affecting thyroid hormone synthesis
Risks	Family history of the condition
Diagnosis	Thyroid function tests, genetic testing
Differential diagnosis	Thyroid agenesis, thyroid dysgenesis
Prevention	Genetic counseling
Treatment	Thyroid hormone replacement therapy
Medication	Levothyroxine
Prognosis	Good with treatment
Frequency	Rare
Deaths	N/A

Thyroid dyshormonogenesis is a type of congenital hypothyroidism caused by defects in the synthesis of thyroid hormones. It is a rare, inherited disorder, which can lead to growth and development problems if not treated early.

Causes

Thyroid dyshormonogenesis is caused by mutations in several genes that are involved in the production of thyroid hormones. These include the thyroglobulin (TG), thyroid peroxidase (TPO), iodotyrosine deiodinase (IYD), sodium-iodide symporter (NIS), and dual oxidase 2 (DUOX2) genes. The mutations can be inherited from one or both parents.

Symptoms

The symptoms of thyroid dyshormonogenesis are similar to those of other forms of congenital hypothyroidism. They include poor growth, delayed development, constipation, dry skin, and a large tongue. If left untreated, the condition can lead to intellectual disability and physical abnormalities.

Diagnosis

The diagnosis of thyroid dyshormonogenesis is usually made shortly after birth through newborn screening tests. These tests measure the levels of thyroid hormones in the blood. If the levels are low, further tests are done to determine the cause of the hypothyroidism.

Treatment

The treatment for thyroid dyshormonogenesis is lifelong thyroid hormone replacement therapy. This involves taking a synthetic form of the thyroid hormone thyroxine (T4) every day. With early diagnosis and treatment, children with thyroid dyshormonogenesis can lead normal, healthy lives.

See also

• Congenital hypothyroidism
• Thyroid hormone
• Thyroid peroxidase
• Thyroglobulin

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