nodular goiter

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nodular goiter

Etymology: L, nodus, knot; Gk, guttur, throat
an enlarged goiter that contains nodules.
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Nodular goiter

nodular goiter

A goiter that contains nodules.
See also: goiter

Nodular goiter

An enlargement of the thyroid (goiter) caused when groups of cells collect to form nodules.

goiter, goitre

enlargement of the thyroid gland, causing a swelling in the front part of the neck.

adenomatous goiter
multilobular goiters cause thyroid enlargement in cats.
colloid goiter
is characterized by the presence of a large soft thyroid gland with its glandular space distended with colloid. Most cases occur in neonatal lambs, calves and kids which show a high rate of stillbirths and weakness and a high mortality rate. Enlarged thyroid glands and alopecia are good indicants of the existence of a nutritional deficiency of iodine, the usual cause of goiter in animals.
dyshormonogenetic goiter
an impairment in thyroglobulin synthesis is thought to be the cause of inherited, congenital goiter recorded in sheep, cattle and goats. The thyroid gland is enlarged, there is a high neonatal mortality, a silky wool in sheep and a rough, sparse haircoat in goats. Called also inherited goiter.
goitrogen-induced goiter
there are a number of goitrogens in the environment of grazing animals. Their effect is almost entirely on the newborn. Common agents are low level intakes of cyanogenetic glycosides, e.g. in white clover, the glucosinolates in Brassica spp. plants, and mimosine in Leucaena leucocephala.
hyperplastic goiter
diffuse hyperplasia is the standard response to dietary iodine deficiency and to poisoning by plant goitrogens. It may also be caused by persistent exposure of the fetus to a high iodine intake of the dam. See also iodide goiter (below). Neonates are the usual subjects and the disease is manifested by clinical goiter, often sufficient to cause dystocia, and weak neonates with a high rate of stillbirths and deaths soon after birth.
inherited goiter
see dyshormonogenetic goiter (above).
iodide goiter
that occurring in reaction to iodides at high concentrations, due to inhibition of iodide organification.
nodular goiter
an endocrinologically inactive nodular enlargement of the thyroids in old dogs and horses. In old cats similar goiters sometimes develop functional adenomas.
References in periodicals archive ?
While there was solitary nodule in 6 of the cases diagnosed with nodular goiter (n=9), multiple nodules were determined in 3 of them.
Cure rate was 77% in patients with Graves' disease group and 85% in toxic nodular goiter group (p=0.
Fine-Needle Aspirate (FNA) Diagnoses Using Conventional Criteria and Follow-up Histopathologic Diagnoses FNA Diagnosis (n) Surgical Follow-up (n) Hurthle cell neoplasm (13) Hurthle cell adenoma (6) Hurthle cell carcinoma (3) Hashimoto's thyroiditis (4) Nonneoplastic thyroid (17) Hurthle cell carcinoma (1) Hashimoto's thyroiditis (12) Nodular goiter (4)
Eighteen cases demonstrated normal follicles and fiber connective tissue pathologically by fine needle aspiration (FNA) or were diagnosed as a nodular goiter with fibrosis by surgical pathology; others were diagnosed benign nodules by clinical manifestations.
The National Academy of Clinical Biochemistry guidelines recommend use of serum thyrotropin (TSH) receptor antibody (TRAb) analysis to distinguish between Graves disease and other thyroid diseases, such as subacute or postpartum thyroiditis and toxic nodular goiter (1, 2).
6%, respectively) and also had a higher proportion of multiple thyroid lesions including nodular goiter and Hashimoto's thyroiditis (61.
In this report, also, the nodular goiter associated with HS is investigated and the clinical diagnosis of the disease is confirmed via pharmacological testing by aproclonidine.
Colloidal nodule, lymphocytic thyroiditis, nodular goiter and nodular hyperplasia were accepted as benign cytology.

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