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| {{SK}} Painless thyroiditis; subacute lymphocytic thyroiditis. | | {{SK}} Painless thyroiditis; subacute lymphocytic thyroiditis. |
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| == Overview == | | ==[[Silent thyroiditis overview|Overview]]== |
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| '''Silent thyroiditis''', more specifically and scientifically as '''subacute lymphocytic thyroiditis''', is a member of the group of thyroiditis conditions known as resolving thyroiditis, which includes a very similar condition to silent thyroiditis, '''postpartum thyroiditis'''.
| | ==[[Silent thyroiditis historical perspective|Historical Perspective]]== |
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| == Causes == | | ==[[Silent thyroiditis classification|Classification]]== |
| Silent thyroiditis is most likely [[autoimmune]].
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| [[Hashimoto's thyroiditis]] is also known as chronic lymphocytic thyroiditis and is, therefore, in the same "family" as silent thyroiditis. It seems that silent thyroiditis may be transient "hashitoxicosis," which is a hyperthyroidism phase before the usual hypothyroidism associated with Hashimoto's thyroiditis.
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| Ingestion of large or minimal amounts of [[iodine]] bring a host of different conditions and usually is not associated with silent thyroiditis.
| | ==[[Silent thyroiditis pathophysiology|Pathophysiology]]== |
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| == Diagnosis == | | ==[[Silent thyroiditis causes|Causes]]== |
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| ===History and Symptoms=== | | ==[[Silent thyroiditis differential diagnosis|Differentiating Silent thyroiditis from other Diseases]]== |
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| Silent thyroiditis features a small [[Goitre|goiter]] without tenderness and, like the other types of resolving thyroiditis, tends to have a phase of [[hyperthyroidism]] followed by a phase of [[hypothyroidism]] then a return to euthyroidism.<ref>NIH Medline Plus [http://www.nlm.nih.gov/MEDLINEPLUS/ency/article/000388.htm]</ref> The time span of each phase is not concrete, but the hypo- phase usually lasts 2-3 months. | | ==[[Silent thyroiditis epidemiology and demographics|Epidemiology and Demographics]]== |
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| The symptoms are those of hyperthyroidism and hypothyroidism during these phases.
| | ==[[Silent thyroiditis risk factors|Risk Factors]]== |
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| ===Laboratory Findings=== | | ==[[Silent thyroiditis screening|Screening]]== |
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| Thyroid autoantibodies (anti-thyroglobulin, anti-thyroid peroxidase) may be present, but the extent of their role in silent thyroiditis is unknown.
| | ==[[Silent thyroiditis natural history, complications and prognosis|Natural History, Complications and Prognosis]]== |
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| ===Other Imaging Findings=== | | ==Diagnosis== |
| During the hyperthyroidism phase, RAIU (Radioactive Iodine Uptake) is suppressed while during the hypothyroidism phase it is increased.<ref>NIH Medline Plus [http://www.nlm.nih.gov/MEDLINEPLUS/ency/article/000388.htm]</ref>
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| == References == | | ==Treatment== |
| {{reflist|2}}
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| | ==Case Studies== |
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