| crypt | <pathology> Deep pit that protrudes down into the connective tissue surrounding the small intestine. The epithelium at the base of the crypt is the site of stem cell proliferation and the differentiated cells move upwards and are shed 3-5 days later at the tips of the villi. (18 Nov 1997) |
|---|---|
| crypt abscesses | Abscesses in crypts of Lieberkuhn of the large intestinal mucosa; a characteristic feature of ulcerative colitis. (05 Mar 2000) |
| crypta | Synonym: crypt. Origin: L. Fr. G. Kryptos, hidden (05 Mar 2000) |
| crypta tonsillaris | One of the variable number of deep recesses that extend into the palatine and pharyngeal tonsils from the free surface where they open at the tonsillar fossa. Synonym: crypta tonsillaris. (05 Mar 2000) |
| cryptectomy | Excision of a tonsillar or other crypt. Origin: crypt + G. Ektome, excision (05 Mar 2000) |
| cryptenamine acetates | Acetate or tannate salts of alkaloids from a nonaqueous extract of Veratrum viride, containing the hypotensive alkaloids protoveratrines A and B, germitrine, neogermetrine, germerine, germidine, jervine, rubijervine, isorubijervine, and germubide; used as antihypertensive agents. See: protoveratrine A and B. (05 Mar 2000) |
| cryptic | Hidden; occult; larvate. Origin: G. Kryptikos (05 Mar 2000) |
| cryptic plasmid | A plasmid which has no apparent effect on the phenotype of its host cell and has no genes other than the ones needed for itself to replicate and spread to other cells. (09 Oct 1997) |
| cryptitis | Inflammation of a follicle or glandular tubule, particularly in the rectum. (05 Mar 2000) |
| crypto- | Crypt- Hidden, obscure; without apparent cause. Origin: G. Kryptos, hidden, concealed (05 Mar 2000) |
| cryptococcal meningitis | <pathology> An opportunistic infection caused by the fungus Cryptococcus neoformans and involving the membranes surrounding the brain and spinal cord. Symptoms may include severe headache, confusion, sensitivity to light, blurred vision, fever and speech difficulties. Left untreated, the disease can lead to coma and death. Standard treatments are amphotericin B (induction) and fluconazole (maintenance). (09 Oct 1997) |
| cryptococcoma | An infectious granuloma, typically in the brain, but also found in the lung and elsewhere, caused by Cryptococcus neoformans. Synonym: toruloma. Origin: Cryptococcus (genus name) + -oma (05 Mar 2000) |
| cryptococcosis | An acute, subacute or chronic infection by the fungal organism, Cryptococcus neoformans. Infection generally causes a pulmonary infection but may also disseminate to the meninges. The pulmonary form is generally mild and transient (often unrecognised). With dissemination lesions may occur in the skeletal, cutaneus and visceral tissues. The most commonly recognised dissemination is to the central nervous system (meningitis). (27 Sep 1997) |
| Cryptococcus | A genus of yeastlike fungi that reproduce by budding. Origin: crypto-+ G. Kokkos, berry Cryptococcus neoformans, a species that causes cryptococcosis in humans and other mammalians and parasitises cats in some areas, although strains vary in virulence; the cells are spherical and may bud at any point on the surface or simultaneously at several points; a prominent feature is a mucoid polysaccharide capsule which may vary in width from very thin to several times the radius of the parent cell and buds combined. Once thought to be widespread in nature, its true niche appears to be narrowing to a saprobic association with the manure and nests of pigeons; it is therefore essentially global in distribution. (05 Mar 2000) |
| cryptococcus neoformans | A species of the fungus cryptococcus, which causes cryptococcosis. (12 Dec 1998) |
| dental crypt | <dentistry> The space filled by the dental follicle. Enamel crypt, the narrow, mesenchyme-filled space between the dental ledge and an enamel organ. Synonym: enamel niche. (05 Mar 2000) |
|---|---|
| synovial crypt | A diverticulum of the synovial membrane of a joint. (05 Mar 2000) |
| tonsillar crypt | One of the variable number of deep recesses that extend into the palatine and pharyngeal tonsils from the free surface where they open at the tonsillar fossa. Synonym: crypta tonsillaris. (05 Mar 2000) |
| lingual crypt | A pit lined with epithelium in the lingual tonsil. (05 Mar 2000) |