| familial goiter | A group of heritable thyroid disorders in which goiter is commonly apparent first during childhood; often associated with skeletal and/or mental retardation, and with other signs of hypothyroidism that may develop with age. Various types of familial goiter have been identified: 1) iodide transport defect, in which the gland is unable to concentrate iodide; 2) organification defect, in which the iodination of tyrosine is defective; 3) Pendred's syndrome; 4) coupling defect, in which cretinism results from defective coupling of iodotyrosines to form iodothyronines; 5) iodotyrosine deiodinase defect, in which deiodination of iodotyrosine is defective, considerable glandular loss of these hormonal precursors occurs, and cretinism may be present; 6) plasma iodoprotein disorder, in which an abnormal iodinated serum protein that is insoluble in acidic butanol is present; 7) hereditary hyperthyroidism. (05 Mar 2000) |
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| fibrous goiter | A firm hyperplasia of the thyroid and its capsule. (05 Mar 2000) |
| lingual goiter | A tumour of thyroid tissue involving the embryonic rudiment at the base of the tongue. (05 Mar 2000) |
| lymphadenoid goiter | <endocrinology> Inflammation of the thyroid gland without the formation of pus. Noninfectious nonbacterial thyroid inflammation. (27 Sep 1997) |
| acute follicular conjunctivitis | An obsolete term for acute viral conjunctivitis. (05 Mar 2000) |
| adenocarcinoma, follicular | An adenocarcinoma of the thyroid gland, in which the cells are arranged in the form of follicles. (12 Dec 1998) |
| carcinoma, papillary, follicular | A thyroid neoplasm of mixed papillary and follicular arrangement. Its biological behaviour and prognosis is the same as that of a papillary adenocarcinoma of the thyroid. (12 Dec 1998) |
| giant follicular lymphoblastoma | <tumour> A malignant lymphoma arising from lymphoid follicular B-cells which may be small or large, growing in a nodular pattern. Synonym: follicular lymphoma, giant follicular lymphoblastoma. (05 Mar 2000) |
| giant follicular thyroiditis | A variant of Hashimoto's thyroiditis in which lymphocytic infiltrate in thyroid has formed into giant follicles. (05 Mar 2000) |
| chronic follicular conjunctivitis | Indolent inflammation of the conjunctiva, with discrete follicles in fornices that may be infective, toxic, or irritant in nature. (05 Mar 2000) |
| mucinosis, follicular | A disease of the pilosebaceous unit, presenting clinically as grouped follicular papules or plaques with associated hair loss. It is caused by mucinous infiltration of tissues, and usually involving the scalp, face, and neck. It may be primary (idiopathic) or secondary to mycosis fungoides or reticulosis. (12 Dec 1998) |
| inverted follicular keratosis | A solitary benign epithelial tumour of infundibular hair follicle origin occurring on the face, consisting of a lobulated epidermal downgrowth of keratinizing squamous cells with a pattern of eddies or whorls. (05 Mar 2000) |
| follicular | 1. Like, pertaining to, or consisting of, a follicles or follicles. 2. <medicine> Affecting the follicles; as, follicular pharyngitis. Source: Websters Dictionary (01 Mar 1998) |
| follicular abscess | An abscess in a hair, tonsillar, or other follicle. (05 Mar 2000) |
| follicular adenoma | <tumour> An adenoma of the thyroid with a simple glandular pattern. (05 Mar 2000) |