MONDO_0007699 (Hashimoto thyroiditis) is an autoimmune disorder caused by the production of autoantibodies against thyroid tissue. There is progressive destruction of the thyroid follicles leading to hypothyroidism. Also known as: Hashimoto disease, Hashimoto hypothyroidism, Hashimoto's disease, Hashimoto's syndrome, Hashimoto's thyroiditis, chronic lymphocytic thyroiditis.