Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to hyperthyroidism: Graves disease, hypothyroidism


see thyroid glandthyroid gland,
endocrine gland, situated in the neck, that secretes hormones necessary for growth and proper metabolism. It consists of two lobes connected by a narrow segment called the isthmus. The lobes lie on either side of the trachea, the isthmus in front of it.
..... Click the link for more information.



an increase in the function of the thyroid gland. Hyperthyroidism is one of the manifestations of a toxic diffuse goiter. It usually arises as a result of psychic trauma and sometimes with certain diseases and conditions, such as tuberculosis, rheumatism, or pregnancy. More rarely it is the result of an infection. It is manifested by increased excitability of the nervous system, intensification of reflexes, slight psychic agitation, rapid fatigability, acceleration of pulse rate, trembling of the hands, tendency to perspire, increase in basal metabolic rate, and weight loss. Hyperthyroidism is often combined with dysfunctions of other endocrine glands. Treatment for it includes remedies that calm the nervous system and microdoses of iodine.



The constellation of signs and symptoms caused by excessive thyroid hormone in the blood, either from exaggerated functional activity of the thyroid gland or from excessive administration of thyroid hormone, and manifested by thyroid enlargement, emaciation, sweating, tachycardia, exophthalmos, and tremor. Also known as exophthalmic goiter; Grave's disease; thyrotoxicosis; toxic goiter.
References in periodicals archive ?
In a recent series, 2 patients were found to have hyperthyroidism after an investigation for hypercalcemia (5).
This complete daily nutrition means no pills or medication are required to treat hyperthyroidism.
It is known that, untreated hyperthyroidism causes severe osteoporosis and pathologic fractures.
Graves disease is believed to be the major cause of hyperthyroidism during pregnancy, accounting for > 85% of cases, and may play a role in subclinical hyperthyroidism (Glinoer 1997; Mestman 1997).
12) A 1991 retrospective analysis of 1,787 patients with Hodgkin disease who had been treated with external irradiation revealed that Graves hyperthyroidism developed in 30 patients, with concomitant ophthalmopathy in 17, but Graves ophthalmopathy with maintenance of a euthyroid state occurred in only 1 patient.
A nodule can also become overactive, suppressing the rest of the gland and causing hyperthyroidism.
Common causes of hyperthyroidism are toxic diffuse goiter (Graves disease), toxic adenoma, toxic multinodular goiter, and painful subacute thyroiditis.
Changes in stimulating and blocking TSH receptor antibodies in a patient undergoing tree cycles of transition from hypo to hyperthyroidism and back to hypothyroidism.
While studying various factors predicting outcome after RAI in a cohort of 813 hyperthyroid patients, findings were that the gender, goiters of medium and large size, and severity of hyperthyroidism were also significant independent prognostic factors for cure after a single dose of RAI.
The effects of early antithyroid therapy for endogenous subclinical hyperthyroidism on clinical and heart abnormalities.
Thyro-Cat hyperthyroid treatment facilities are built exclusively for I-131 treatment of feline hyperthyroidism.