Hashimoto's thyroiditis
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| Hashimoto's thyroiditis Classification and external resources | |
 | |
|---|---|
| Histology | |
| ICD-10 | E06.3 |
| ICD-9 | 245.2 |
| OMIM | 140300 |
| DiseasesDB | 5649 |
| eMedicine | med/949 |
| MeSH | D050031 |
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Overview
Hashimoto's thyroiditis or chronic lymphocytic thyroiditis is an autoimmune disease where the body's own antibodies attack the cells of the thyroid.
This disorder is believed to be the most common cause of primary hypothyroidism in North America. It occurs far more often in women than in men (10:1 to 20:1), and is most prevalent between 45 and 65 years of age.
In European countries an atrophic form of autoimmune thyroiditis (Ord's thyroiditis) is more common than Hashimoto's thyroiditis.
Causes
A family history of thyroid disorders is common, with the HLA-DR5 gene most strongly implicated conferring a relative risk of 3 in the UK.
The genes implicated vary in different ethnic groups and the incidence is increased in patients with chromosomal disorders, including Turner, Down's, and Klinefelter's syndromes.
The underlying specifics of the immune system destruction of thyroid cells is not clearly understood. Various autoantibodies may be present against thyroid peroxidase, thyroglobulin and TSH receptors, although a small percentage of patients may have none of these antibodies present. A percentage of the population may also have these antibodies without developing Hashimoto's thyroiditis.
Presentation
In many cases, Hashimoto's thyroiditis usually results in hypothyroidism, although in its acute phase, it can cause a transient hyperthyroidism thyrotoxic state known as hashitoxicosis.
Physiologically, antibodies against thyroid peroxidase and/or thyroglobulin cause gradual destruction of follicles in the thyroid gland. Accordingly, the disease can be detected clinically by looking for these antibodies in the blood. It is also characterised by invasion of the thyroid tissue by leukocytes, mainly T-lymphocytes. It is associated with non-Hodgkin lymphoma.
Symptoms of Hashimoto's thyroiditis include symptoms of hypothyroidism, hyperthyroidism and a goitre.
Weight gain, weight loss, depression, mania, fatigue, panic attacks, low pulse, fast pulse, high cholesterol, reactive hypoglycemia, constipation, migraines, memory loss, infertility and hair loss are a few possible symptoms.
Treatment
Hypothyroidism caused by Hashimoto's Thyroiditis is treated with thyroid hormone replacement. A small pill taken once a day should be able to keep the thyroid hormone levels normal. This medicine will, in most cases, need to be taken for the rest of the patient's life.
Eponym
Also known as Hashimoto's disease, Hashimoto's thyroiditis is named after the Japanese physician Hashimoto Hakaru (1881−1934) of the medical school at Kyushu University,[1] who first described the symptoms in 1912 in a German publication[1].
References
External links
- Hashimoto's disease at the Mayo Clinic
de:Hashimoto-Thyreoiditisit:Tiroidite di Hashimoto he:השימוטו תירואידיטיס ja:橋本病sv:Hashimotos sjukdom
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
