| FD | familial dysautonomia; family doctor; fan douche; fatal dose; fetal danger; fibrin derivative; fibro... |
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| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
| FH | facial hemihyperplasia; familial hypercholesterolemia; family history; fasting hyperbilirubinemia; f... |
| FI | fasciculus intrafascicularis; fever caused by infection; fibrinogen; fixed interval; flame ionizatio... |
| FL | fatty liver; feline leukemia; femur length; fibers of Luschka; fibroblast-like; filtration leukapher... |
| follicular mange | An infestation of the hair follicles and sebaceous glands with mites of the genus Demodex; they occur in humans and a number of domesticated animals; although asymptomatic in most species, these mites can cause severe and extensive dermatitis ("red mange") in dogs. Synonym: demodectic acariasis, follicular mange. (05 Mar 2000) |
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| follicular mucinosis | <dermatology> A relatively uncommon benign eruption of discrete erythematous lesions progressing to alopecia on the face or scalp, usually in young people, in which there are cystic mucinous changes in the epithelium of hair follicles in the involved area. It may also develop in mycosis fungoides. (05 Mar 2000) |
| follicular ovarian cells | Cell's of an ovarian follicle that surround the developing ovum; they form the stratum granulosum ovarii and cumulus oophorus. (05 Mar 2000) |
| follicular papule | <dermatology> A papular lesion arising about a hair follicle. It is a feature that is not specific for any condition. (05 Mar 2000) |
| follicular phase | <gynaecology, physiology> The follicular phase is the pre-ovulatory phase of a woman's reproductive cycle during which the follicle grows and high oestrogen levels cause the uterine lining to grow. (09 Oct 1997) |
| follicular stigma | <gynaecology, physiology> The point where the graafian follicle is about to rupture on the surface of the ovary. Synonym: macula pellucida, stigma. (05 Mar 2000) |
| follicular syphilid | Secondary eruption of small follicular papules, usually appearing as groups of lesions. Synonym: acuminate papular syphilid, lichen syphiliticus, miliary papular syphilid. (05 Mar 2000) |
| follicular trachoma | <ophthalmology> The ordinary form of trachoma marked by the presence of granulations on the conjunctiva. Synonym: granular trachoma. (05 Mar 2000) |
| follicular urethritis | <urology> Chronic urethritis with nodular lymphocytic infiltrations in the mucosa. Synonym: granular urethritis. (05 Mar 2000) |
| follicular vulvitis | <gynaecology> Inflammation of the vulvar follicles. (05 Mar 2000) |
| lymphoma, follicular | Malignant lymphoma in which the lymphomatous cells are clustered into identifiable nodules within the lymph nodes. The nodules resemble to some extent the germinal centres of lymph node follicles and most likely represent neoplastic proliferation of lymph node-derived follicular centre B-lymphocytes. This class of lymphoma usually occurs in older persons, is commonly multinodal, and possibly extranodal. Patients whose lymphomas present a follicular or nodular pattern generally have a more indolent course than those presenting with a diffuse pattern. (12 Dec 1998) |
| T-cell-rich, B-cell lymphoma | <tumour> A B-cell lymphoma in which more than 90% of the cells are of T-cell origin, masking the large cells that form the neoplastic B-cell component. See: adult T-cell lymphoma. (05 Mar 2000) |
| absorption cell | A small glass chamber with parallel sides, in which absorption spectra of solutions can be obtained. (05 Mar 2000) |
| acid cell | One of the cell's of the gastric glands; it lies upon the basement membrane, covered by the chief cell's, and secretes hydrochloric acid that reaches the lumen of the gland through fine intracellular and intercellular canals (canaliculi). Synonym: acid cell, oxyntic cell. (05 Mar 2000) |
| acidophil cell | A cell whose cytoplasm or its granules stain with acid dyes. (05 Mar 2000) |