Hashimoto's thyroiditis

thyroiditis /thy·roid·itis/ (-i´tis) inflammation of the thyroid gland.

---

atrophic thyroiditis  a type of autoimmune thyroiditis with atrophy of the follicles and without goiter.

autoimmune thyroiditis  any of various types characterized by autoantibodies against the thyroid, resulting in hypothyroidism; the two major types are Hashimoto's disease and atrophic thyroiditis; Riedel's thyroiditis is a less common type.

Hashimoto's thyroiditis  see under disease.

Riedel's thyroiditis  a chronic type of autoimmune thyroiditis with a proliferating, fibrosing, inflammatory process involving usually one but sometimes both lobes of the thyroid gland, as well as the trachea and other adjacent structures.

---

Hashimoto's thyroiditis

The self destruction of the thyroid cells from an autoimmune disorder.

Mentioned in: Hypoparathyroidism

---

thyroiditis [thi″roi-di´tis]

inflammation of the thyroid gland, usually characterized by such symptoms as sore throat, fever, and painful enlargement of the gland.

atrophic thyroiditis a type of autoimmune thyroiditis with atrophy of the follicles and without goiter.

autoimmune thyroiditis any of various types of thyroiditis characterized by autoantibodies against the thyroid gland, resulting in hypothyroidism. The two major types are Hashimoto's disease and atrophic thyroiditis; Riedel's thyroiditis is a less common type.

Hashimoto's thyroiditis Hashimoto's disease.

Riedel's thyroiditis a chronic type of autoimmune thyroiditis with a proliferating, fibrosing, inflammatory process involving usually one but sometimes both lobes of the gland, which becomes hard and enlarged and adherent to the trachea and other adjacent structures. Called also Riedel's struma.

subacute lymphocytic thyroiditis painless, self-limited hyperthyroidism without the nonthyroidal features of Graves' disease; there is lymphocytic infiltration of the thyroid gland.

---

thyroiditis

inflammation of the thyroid gland.

---

autoimmune thyroiditis

see lymphocytic thyroiditis (below).

Hashimoto's thyroiditis

see also hashimoto's disease, lymphocytic thyroiditis (below).

immune-mediated thyroiditis

see lymphocytic thyroiditis (below).

lymphocytic thyroiditis

progressive cellular infiltration of the thyroid gland, predominantly by lymphocytes, and replacement by fibrous tissue, resulting in hypothyroidism, associated with the presence of autoantibodies against thyroglobulin, follicular cell microsomes, and a second colloid antigen. It occurs in dogs, particularly Beagles, obese (OS) chickens, buffalo rats and primates. The disease has some similarity to Hashimoto's disease of humans.

---

Hashimoto's thyroiditis

Autoimmune thyroiditis, Hashimoto's autoimmune thyroiditis, Hashimoto's disaease, lymphadenoid goiter, struma lymphomatosa A form of thyroiditis most common in ♀ age 30-50, presents as a diffuse firm thyroid enlargement and/or with a familial Hx of goiter, hypothyroidism, Graves' disease or antithyroid antibodies; other diseases with autoimmune substrate associated with HT include chronic active hepatitis, DM, megaloblastic anemia, PBC, rheumatoid arthritis, Sjögren syndrome Clinical Goiter, often little else, but, if extreme, esophageal or tracheal compression Lab Antimicrosomal antibodies; while euthyroid state is maintained, ↑ RAIU, ↓ TSH, normal T₃, normal T₄; with nonresponse to TSH, ↓ RAIU, ↓ T₄, ↑ T₃ which reflects maximum stimulation Management Hormone replacement Prognosis Excellent Complications Rarely, lymphoma