NCIt definition : Self-limited inflammation of the thyroid gland. The clinical course includes an initial
phase of hyperthyroidism, followed by a phase of hypothyroidism, and eventually a
return to normal thyroid function. This category includes the subacute lymphocytic
thyroiditis and subacute granulomatous thyroiditis.;
Alternative definition : NICHD: Self-limited thyroiditis presumed to be caused by a viral infection.;