Thyroiditis, Autoimmune

**Definition:** Inflammatory disease of the THYROID GLAND due to autoimmune responses leading to lymphocytic infiltration of the gland. It is characterized by the presence of circulating thyroid antigen-specific T-CELLS and thyroid AUTOANTIBODIES. The clinical signs can range from HYPOTHYROIDISM to THYROTOXICOSIS depending on the type of autoimmune thyroiditis.

**Tree numbers:** - C19.874.871.102 - C20.111.809

**Synonyms:** - Thyroiditis, Lymphocytic - Thyroiditis, Lymphomatous - Autoimmune Thyroiditis