NCIt definition : Inflammation of the thyroid gland. This category includes Hashimoto thyroiditis, Riedel
thyroiditis, acute thyroiditis, subacute thyroiditis, and radiation-induced thyroiditis.;
Alternative definition : NCI-GLOSS: Inflammation of the thyroid gland. Thyroiditis may be an autoimmune disease
that affects the thyroid gland over time, causing hypothyroidism (too little thyroid
hormone). A temporary form of thyroiditis may also occur after the birth of a baby,
or when viral or bacterial infections spread to the thyroid.; NICHD: Inflammation of the thyroid gland.;