| pseudoepitheliomatous hyperplasia | Pseudocarcinomatous hyperplasia, a benign marked increase and downgrowth of epidermal cells, observed in chronic inflammatory dermatoses; microscopically, it resembles well-differentiated squamous cell carcinoma. (05 Mar 2000) |
|---|---|
| pseudoerysipelas | An infection caused by erysipelothrix rhusiopathiae that is almost wholly restricted to persons who in their occupation handle infected fish, shellfish, poultry, or meat. Three forms of this condition exist: a mild localised form manifested by local swelling and redness of the skin; a diffuse form that might present with fever; and a rare systemic form associated with endocarditis. (12 Dec 1998) |
| pseudoesthesia | Synonym: paraphia. Synonym: pseudesthesia. Synonym: phantom limb. (05 Mar 2000) |
| pseudoexfoliation | A condition simulating exfoliation in some respects, but in which the surface layer is not actually detached. Pseudoexfoliation of lens capsule, deposition in all parts of the eye, including the lens capsule, of a material derived from basement membranes. If this material clogs the trabecular meshwork, impeding the outflow of aqueous humor from the eye, glaucoma may result. See: exfoliation syndrome, capsular glaucoma. (05 Mar 2000) |
| pseudoexfoliative capsular glaucoma | Secondary glaucoma incident to a degenerative cyclitis producing deposits on anterior lens capsule. (05 Mar 2000) |
| pseudofilaria | Origin: NL. See Pseudo-, and Filaria. <zoology> One of the two elongated vibratile young formed by fission of the embryo during the development of certain Gregarinae. Source: Websters Dictionary (01 Mar 1998) |
| pseudofluctuation | A wavelike sensation, resembling fluctuation, obtained by tapping muscular tissue. (05 Mar 2000) |
| pseudofolliculitis | <dermatology> Erythematous follicular papules or, less commonly, pustules resulting from close shaving of very curly hair. The growing tips of hairs consequently reenter the skin adjacent to the follicle producing ingrown hairs. Pseudofolliculitis of the beard area is very common in blacks. (21 Jun 2000) |
| pseudofracture | <radiology> A condition in which a radiograph shows formation of new bone with thickening of periosteum at site of an injury to bone. There is often a lucent band of decreased cortical density, perpendicular to bone surface, often multiple, with or without callus formation. It is said to be pathognomonic of osteomalacia and seen on compressive (concave) side (e.g., proximal femur), also seen in Paget disease on the tensile (convex) side. Synonym: Looser zone (21 Jun 2000) |
| pseudofructose | Ribo-2-hexulose;a ketohexose; d-psicose is epimeric with d-fructose. Synonym: pseudofructose, ribo-2-hexulose. (05 Mar 2000) |
| pseudofusion beat | <cardiology, physiology> An electrocardiographic representation of a cardiac depolarisation produced by superimposition of an ineffectual electronic pacemaker spike upon a QRS-complex originating from a spontaneous focus within the heart. The pacemaker spike is ineffectual because the electronic discharge, which it represents graphically, occurred within the absolute refractory period of the spontaneous beat and is therefore not indicative of pacemaker malfunction. (21 Jun 2000) |
| pseudogalena | <chemical> False galena, or blende. Source: Websters Dictionary (01 Mar 1998) |
| pseudoganglion | A localised thickening of a nerve trunk having the appearance of a ganglion. (05 Mar 2000) |
| pseudogene | <molecular biology> Nonfunctional DNA sequences that are very similar to the sequences of known genes. Examples are those found in the beta like globin gene cluster. Some probably result from gene duplications that become nonfunctional because of the loss of promoters, accumulation of stop codons, mutations that prevent correct processing etc. Some pseudogenes contain a poly A tail suggesting that a mRNA, at some point, was copied into DNA that was then integrated into the genome. (18 Nov 1997) |
| pseudogenes | Genes bearing close resemblance to known genes at different loci, but rendered non-functional by additions or deletions in structure that prevent normal transcription or translation. When lacking introns and containing a poly-a segment near the downstream end (as a result of reverse copying from processed nuclear RNA into double-stranded DNA), they are called processed genes. (12 Dec 1998) |