autoimmune thyroid diseases (atd) are multifactorial conditions that result from genetic predisposition in combination with environmental risk factors. helicobacter pylori infection as an environmental risk factor has been proposed to imitate the antigenic components of the thyroid cell membrane and may play a leading role in the onset of the autoimmune diseases, such as hashimoto thyroiditis. ...

Low triiodothyronine syndrome is a physiological adaptation encountered in anorexia nervosa (AN) and generally improves with sufficient weight gain. However, when a primary thyroid pathology accompanies AN, both the evaluation of thyroid hormone levels and the management of the co-morbid disease become more challenging. Hashimoto thyroiditis could complicate the management of AN by causing hype...

Background Inflammation of the orbital connective tissue, extraocular muscles and upper eyelids occurs in about 40% of patients with Graves hyperthyroidism [Graves Ophthalmopathy (GO)] while mild eye signs including upper eyelid retraction are found in as many as 25% of patients with Hashimoto thyroiditis and, occasionally, transient thyroiditis. Some workers have proposed a relationship betwee...

Noonan syndrome is an autosomal dominant, multisystem disorder. Autoimmune thyroiditis with hypothyroidism is an infrequent feature in patients with Noonan syndrome. A 16-year-old boy was admitted because of chest discomfort and dyspnea; an echocardiogram revealed pericardial effusion. Additional investigations led to a diagnosis of severe hypothyroidism due to Hashimoto thyroiditis. The patien...

Hashimoto’s thyroiditis is a common autoimmune disorder, which causes significant morbidity. Its pathophysiological hallmark is lymphocytic infiltration of thyroid follicles resulting in autoimmune glandular destruction. Various studies have successfully outlined the genetic and environmental factors responsible for the causation of the disease. In this chapter we will discuss our current under...

Background Inflammation of the orbital connective tissue, extraocular muscles and upper eyelids occurs in about 40% of patients with Graves hyperthyroidism [Graves Ophthalmopathy (GO)] while mild eye signs including upper eyelid retraction are found in as many as 25% of patients with Hashimoto thyroiditis and, occasionally, transient thyroiditis. Some workers have proposed a relationship betwee...

Papillary thyroid carcinoma (PTC) is a common affliction of the thyroid gland, accounting for 70% to 80% of all thyroid cancers, whereas mucosa-associated lymphoid tissue (MALT) lymphoma of the thyroid gland is uncommon. The simultaneous occurrence of both malignancies is extremely rare. We report the case of a patient with both PTC and MALT lymphoma in the setting of Hashimoto thyroiditis. An ...