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What is Hashimoto’s thyroiditis in children?

Hashimoto’s thyroiditis, also known as chronic lymphocytic thyroiditis, is an autoimmune disorder in which the body’s immune system attacks the thyroid gland, leading to inflammation and eventual damage. This condition is one of the most common causes of hypothyroidism (underactive thyroid) in children and adolescents.

Causes

The exact cause of Hashimoto’s thyroiditis is not fully understood. However, it is believed to result from a combination of genetic predisposition and environmental factors that trigger an autoimmune reaction against the thyroid gland. These environmental factors may include viral infections, exposure to certain chemicals, or even dietary factors.

Symptoms

In children, the symptoms of Hashimoto’s thyroiditis can vary widely and be subtle, making diagnosis difficult. Common symptoms include:

• Fatigue and lethargy
• Weight gain or difficulty losing weight
• Constipation
• Dry skin and brittle hair
• Intolerance to cold
• Delayed growth and puberty
• Irregular menstruation in adolescent girls
• Mood swings, including depression and anxiety

Diagnosis

Diagnosis of Hashimoto’s thyroiditis usually involves a combination of medical history, physical examination, and laboratory tests. Blood tests to measure thyroid hormone (FT4) and thyroid-stimulating hormone (TSH) levels are necessary to confirm the diagnosis. In addition, antibodies associated with autoimmune thyroid disorders, such as thyroid peroxidase antibodies (TPOAb) and thyroglobulin antibodies (TgAb), are often elevated in Hashimoto’s thyroiditis.

Normal TSH values ​​by age:

• Newborns (0 to 4 days): 1.1 to 17.0 mIU/L
• Infants (2 to 20 weeks old): 1.5 mlUr/ml: 0.6 to 10.0 mIU/L
• Children (2 to 5 years old): 0.7 to 6.4 mIU/L
• Children (6 to 10 years old): 0.7 to 5.7 mIU/L
• Children (11 to 19 years old): 0.7 to 4.0 mIU/L
• Adults: 0.4 to 4.0 mIU/L

*It is important to note that these values ​​are indicative and may vary slightly depending on the laboratory.

Thyroid Ultrasound in Hashimoto’s Thyroiditis

Thyroid ultrasound is a valuable tool in the management of Hashimoto’s thyroiditis, providing detailed visualization of the structure of the thyroid gland and aiding in diagnosis and treatment decisions. See how it contributes to the care of children with Hashimoto’s thyroiditis:

Thyroid imaging: Thyroid ultrasound allows doctors to visualize the size, shape, and texture of the thyroid gland. In Hashimoto’s thyroiditis, ultrasound may reveal diffuse enlargement of the thyroid gland, known as a goiter, along with characteristic changes such as heterogeneous echogenicity due to inflammation and fibrosis.

Nodule detection: Hashimoto’s thyroiditis increases the risk of developing thyroid nodules. Ultrasound can detect these nodules, determining their size, number, and characteristics, which helps distinguish benign from potentially cancerous nodules.

Treatment

The primary goal of treatment for Hashimoto’s thyroiditis is to restore and maintain normal thyroid hormone levels. This is usually achieved through thyroid hormone replacement therapy, usually in the form of a synthetic thyroid hormone called levothyroxine. The dosage is carefully adjusted based on regular monitoring of thyroid function tests and the child’s clinical response.

Management

Regular follow-up: Regular visits with a pediatric endocrinologist are necessary to monitor thyroid function and adjust treatment as needed.

Healthy lifestyle: Encouraging a balanced diet and regular exercise can help support overall health and may also aid in weight management.

Education and support: Providing education and emotional support to both the child and family members can help relieve stress and make it easier to cope with the condition.

Conclusion

While diagnosing Hashimoto’s thyroiditis in children can be difficult for parents, it is important to remember that with proper management, children with this condition can live full and healthy lives. By working closely with a pediatric endocrinologist and implementing appropriate treatment, parents can help their child thrive despite the challenges that Hashimoto’s thyroiditis poses.