<unk>  is classified as rare. Most patients remain euthyroid, but approximately 30% of patients become hypothyroid and very few patients are hyperthyroid. It is most commonly seen in women.
Riedel's thyroiditis
Ord's thyroiditis
De Quervain's thyroiditis
Hashimoto's thyroiditis
Radiation-induced thyroiditis
Subacute thyroiditis
Subacute lymphocytic thyroiditis
Autoimmune thyroiditis