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DictionarySeegoitercongenital goiter
goiter (goyt'er) [Fr. goitre fr L. guttur, throat]  GOITEREnlargement of the thyroid gland . An enlarged thyroid gland may be caused by thyroiditis, benign thyroid nodules, malignancy, iodine deficiency, or any condition that causes hyperfunction or hypofunction of the gland. Synonym: struma See: illustrationaberrant goiterA supernumerary goiter.acute goiterA goiter that grows rapidly.adenomatous goiterAn outdated term for multinodular goiter. colloid goiterA goiter in which there is a great increase of the follicular contents.congenital goiterA goiter present at birth.cystic goiterA goiter in which a cyst or cysts are formed, possibly resulting from the degeneration of tissue or liquefaction within an adenoma.diffuse goiterA goiter in which the thyroid tissue is diffuse, in contrast to its nodular form as in adenomatous goiter. diving goiterA movable goiter, located either below or above the sternal notch.endemic goiterGoiter development in certain geographic localities, esp. where the iodine content in food and water is deficient. Goiters are more prevalent in fresh water and lake areas and less so on the seacoast, owing to the lack of iodine in fresh water. The treatment consists of iodine taken orally or in iodized salt. exophthalmic goiterGoiter associated with exopthalmos, as in Graves ophthalmopathy. Synonym: thyroid cachexiafibrous goiterA goiter with a hyperplastic capsule. intrathoracic goiterA goiter in which a portion of the thyroid tissue lies within the thoracic cavity.lingual goiterThe abnormal finding of thyroid glandular tissue within the tongue. multinodular goiterA goiter having many circumscribed nodules. nodular goiterA goiter that contains nodules.parenchymatous goiterA usually diffuse goiter characterized by multiplication of cells lining the follicles or alveoli. Colloid is usually reduced and the follicular cavities assume various sizes and are often obliterated by the infoldings of their walls. Fibrous tissue may increase markedly. The iodine content of the gland is low. perivascular goiterA goiter surrounding a large blood vessel. retrovascular goiterA goiter that develops behind a large blood vessel. simple goiterA goiter unaccompanied by constitutional symptoms. substernal goiterAn enlargement of the lower part of the thyroid isthmus.suffocative goiterA goiter that causes shortness of breath owing to pressure.toxic goiterAn exophthalmic goiter or a goiter in which there is an excessive production of the thyroid hormone.vascular goiterA goiter due to distention of the blood vessels of the thyroid gland. |