| 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) |
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| 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) |
| follicular antrum | <physiology> The cavity of an ovarian follicle filled with liquor folliculi. (05 Mar 2000) |
| follicular atresia | <physiology> The degeneration and resorption of an ovarian follicle before it reaches maturity and ruptures. (12 Dec 1998) |
| follicular cancer of the thyroid | <oncology, tumour> A cancer of the thyroid gland that occurs with increased frequency in those who have had radiation exposure to the neck. Other risk factors include a family history of thyroid disease and history for goitre. Follicular carcinoma constitutes about 30% of all thyroid cancers. It has a greater rate of recurrence and metastasis than that of papillary carcinoma (the most common form of thyroid cancer). Symptoms include enlargement of the thyroid gland or neck swelling, change in voice, cough (occasionally bloody) and diarrhoea. (12 Nov 1997) |
| follicular carcinomas | Carcinoma's of the thyroid composed of well or poorly differentiated epithelial follicles without papillary formation, which are difficult to distinguish from adenomas; the criteria include blood vessel invasion and the finding of metastases of follicular thyroid tissue in other structures such as cervical lymph nodes and bone; follicular carcinoma's may take up radioactive iodine. (05 Mar 2000) |
| follicular conjunctivitis | <ophthalmology> Conjunctivitis associated with hypertrophic lymphoid tissue in the conjunctival fornices. (05 Mar 2000) |
| follicular cyst | <physiology> Cyst due to the occlusion of the duct of a follicle or small gland. (12 Dec 1998) |
| follicular cystitis | <urology> Chronic cystitis characterised by small mucosal nodules due to lymphocytic infiltration. (05 Mar 2000) |
| follicular dendritic cell | <pathology> A virus-trapping dendritic cell found in lymph node follicles (germinal centres). See: Germinal Centre and Dendritic Cell. (09 Oct 1997) |
| follicular epithelial cell | <physiology> A cell lining a follicle such as that of the thyroid gland. (05 Mar 2000) |
| follicular fluid | <physiology> A fluid consisting of sex steroid hormones, plasma proteins, mucopolysaccharides, and electrolytes that is present in the vesicular ovarian follicle (graafian follicle) surrounding the ovum. (12 Dec 1998) |