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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.
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decreased functioning of the thyroid gland. Hypothyroidism is a mild form of myxedema. Its basic symptoms are fatigue, slowing down of physical and mental activity, somnolence, sluggishness, decreased memory, sensitivity to cold, puffiness of the face, edematous eyelids, dryness of skin, loss of hair, constipation, and lowered basal metabolism. The treatment for hypothyroidism is hormone therapy.


Condition caused by deficient secretion of the thyroid hormone.
References in periodicals archive ?
Pitukcheewanont P, Rose 8: Nocturnal TSH surge: a sensitive diagnostic test for central hypothyroidism in children.
3) As in this patient, central hypothyroidism may herald significant pituitary disease, and it is often overlooked for several years.
Since the patient's thyroid function tests were consistent with central hypothyroidism and all the other anterior pituitary hormones and MRI were normal, the possibility of isolated thyrotropin deficiency (secondary hypothyroidism) or thyrotropin-releasing hormone (TRH) deficiency (tertiary hypothyroidism) was entertained.
Central hypothyroidism is a rare disorder with a prevalence of 0.
Hormonal investigations revealed hypopituitarism in the form of GH deficiency, central hypothyroidism, secondary adrenal insufficiency, secondary hypogonadism with hyperprolactinemia; the skull x- ray and standard sellar computed tomography (CT) were normal (9).
Other than the above reference, central hypothyroidism is not considered a cause of hyperprolactinemia.
Central hypothyroidism is a rare form of hypothyroidism in which there is a low serum level of circulating thyroxine ([T.
3] is not measured in these patients, the biochemical parameters indicate central hypothyroidism.
In the treatment of central hypothyroidism, the goal is to achieve a normal free-[T.
Waise A, Belchetz PE: Lesson of the week: unsuspected central hypothyroidism.

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