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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

pseudomegacolon
Enlargement of the distal colon with sluggish muscular function without the neurologic abnormalities of congenital megacolon (Hirschsprung's disease). ... (05 Mar 2000) ...

pseudomelanosis
A dark greenish or blackish postmortem discoloration of the surface of the abdominal viscera, resulting from the action of sulfureted hydrogen upon the iron of disintegrated haemoglobin. ... Origin: pseudo-+ G. Melas, black ... (05 Mar 2000) ...

pseudomembrane
Synonym for false membrane ... <dermatology> A thick, tough fibrinous exudate on the surface of a mucous membrane or the skin, as seen in diphtheria. ... Synonym: croupous membrane, neomembrane, plica, pseudomembrane. ... (05 Mar 2000) ...

pseudomembranous
<anatomy> Marked by or pertaining to a pseudomembrane. ... (18 Nov 1997) ...

pseudomembranous bronchitis
Synonym for fibrinous bronchitis ... Inflammation of the bronchial mucous membrane, accompanied by a fibrinous exudation, which often forms a cast of the bronchial tree with severe obstruction of air flow. ... Synonym: plastic bronchitis, pseudomembranous bronchitis. ... (05 Mar 2000) ...

pseudomembranous colitis
<gastroenterology> A form of gastroenteritis which occurs when there is an over-growth of Clostridium difficile bacteria in the intestine. This can occur after long-term treatment with broad spectrum antibiotics. ... (25 Nov 1998) ...

pseudomembranous conjunctivitis
A non-specific inflammatory reaction characterised by the appearance on the conjunctiva of a coagulated fibrinous plaque that may be peeled off from intact epithelium. ... (05 Mar 2000) ...

pseudomembranous enteritis
Synonym for pseudomembranous enterocolitis ... Enterocolitis with the formation and passage of pseudomembranous material in the stools; occurs most commonly as a sequel to antibiotic therapy; caused by a necrolytic exotoxin made by Clostridium difficile. ... Synonym: pseudomembranous colitis, pseudomembranous enteritis. ... (05 Mar 2000) ...

pseudomembranous enterocolitis
Enterocolitis with the formation and passage of pseudomembranous material in the stools; occurs most commonly as a sequel to antibiotic therapy; caused by a necrolytic exotoxin made by Clostridium difficile. ... Synonym: pseudomembranous colitis, pseudomembranous enteritis. ... (05 Mar 2000) ...

pseudomembranous gastritis
Gastritis characterised by the formation of a false membrane. ... (05 Mar 2000) ...

pseudomembranous inflammation
A form of exudative inflammation that involves mucous and serous membranes; relatively large quantities of fibrin in the exudate result in a rather tenacious membrane-like covering that is fairly adherent to the underlying acutely inflamed tissue; the pseudomembrane usually contains (in addition to the dense network of fibrin) varying quantities of …

pseudomeningitis
Synonym for meningism ... The symptoms and signs of meningeal irritation associated with acute febrile illness or dehydration without actual infection of the meninges. ... (12 Dec 1998) ...

pseudomenstruation
Uterine bleeding without the typical premenstrual endometrial changes. ... (05 Mar 2000) ...

pseudometaplasia
Synonym for histologic accommodation ... The change in shape of cells to meet altered physical conditions, as the flattening of cuboidal cells in cysts as a result of pressure. ... Synonym: pseudometaplasia. ... (05 Mar 2000) ...

pseudomnesia
A subjective impression of memory of events that have not occurred. ... Origin: pseudo-+ G. Mnesis, memory ... (05 Mar 2000) ...

pseudomonad
<bacteria> Member of the genus Pseudomonas, a large group of Gram-negative, obligately respiratory (never fermentative) bacteria. ... (25 Nov 1998) ...

pseudomonadaceae
A family of gram-negative bacteria usually found in soil or water and including many plant pathogens and a few animal pathogens. ... (12 Dec 1998) ...

Pseudomonas
<bacteria> Genus of gram-negative bacteria. They are rod shaped and are motile, possessing one or more polar flagella. Several species produce characteristic water soluble fluorescent pigments. They are found in soil and water. ... Pseudomonas syringae is a plant pathogen causing leaf spot and wilt. Pseudomonas aeruginosa, normally a soil bact …

Pseudomonas acidovorans
A species found in soil and occasionally in clinical specimens. ... (05 Mar 2000) ...

pseudomonas aeruginosa
A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. Aeruginosa is a major agent of nosocomial infection. ... (12 Dec 1998) ...

Pseudomonas cepacia
A species found in rotted onions and in clinical specimens. ... (05 Mar 2000) ...

Pseudomonas cytochrome oxidase
<enzyme> Catalyses conversion of ferrocytochrome to ferricytochrome utilizing nitrate as oxidizing agent ... Registry number: EC 1.9.3.2 ... Synonym: cytochrome cd, nitrosyl nitrite reductase, cytochrome c,d1, dissimilatory nitrite reductase, cytochrome cd1 nitrite reductase, cd1-dnir, cd1-dnirs, pseudomonas aeruginosa nitrite reductase, nitrit …

Pseudomonas diminuta
A species found primarily in clinical specimens, rarely in water. ... (05 Mar 2000) ...

pseudomonas fluorescens
A species of nonpathogenic fluorescent bacteria found in feces, sewage, soil, and water, and which liquefy gelatin. ... (12 Dec 1998) ...

pseudomonas infections
Infections with bacteria of the genus pseudomonas. ... (12 Dec 1998) ...

Pseudomonas mallei
A species infectious to horses and donkeys, causing glanders and farcy. ... Synonym: glanders bacillus. ... (05 Mar 2000) ...

Pseudomonas maltophilia
Synonym for Xanthomonas maltophilia ... A species found primarily in clinical specimens but also in water, milk, and frozen food. Frequent cause of infections in hospitalised and immunocompromised humans. ... Synonym: Pseudomonas maltophilia. ... (05 Mar 2000) ...

pseudomonas phages
Viruses whose host is pseudomonas. A frequently encountered pseudomonas phage is bacteriophage phi 6. ... (12 Dec 1998) ...

Pseudomonas piscicida
A species pathogenic for fish. ... (05 Mar 2000) ...

Pseudomonas pseudoalcaligenes
A species found in a sinus discharge. ... (05 Mar 2000) ...

Pseudomonas pseudomallei
A species found in cases of melioidosis in humans and other animals and in soil and water in tropical regions. ... Synonym: Whitmore's bacillus. ... (05 Mar 2000) ...

pseudomonas putida
A species of gram-negative, aerobic bacteria isolated from soil and water as well as clinical specimens. Occasionally it is an opportunistic pathogen. ... (12 Dec 1998) ...

Pseudomonas putrefaciens
Former for term for Alteromonas putrefaciens. ... (05 Mar 2000) ...

Pseudomonas serine proteinase
<enzyme> Extracellular proteases I, II, III have role in infectious process of pseudomonas aeruginosa; included in the group of microbial serine proteinases EC 3.4.21.4 ... Registry number: EC 3.4.21.- ... Synonym: pseudomonas aeruginosa protease, pseudomonas alkaline protease ... (26 Jun 1999) ...

Pseudomonas stutzeri
A species found in soil and water, frequently in clinical specimens. ... (05 Mar 2000) ...

Pseudomonas vesicularis
A species found in the medicinal leech (Hirudo medicinalis) and in water from a stream. ... (05 Mar 2000) ...

pseudomonomolecular
Synonym for pseudounimolecular ... <biochemistry> Referring to a reaction whose rate appears to be dependent on the concentration of only one substrate; usually due to a constant, saturating level of the other compounds. ... Synonym: pseudomonomolecular. ... (05 Mar 2000) ...

pseudomucinous cyst
A cyst containing a gelatinous fluid, formerly thought to differ significantly from mucin, occurring especially in the ovary. ... (05 Mar 2000) ...

pseudomycelium
A mycelium-like mass of pseudohyphae. ... (05 Mar 2000) ...

pseudomyopia
A condition simulating myopia and due to spasm of the ciliary muscle. ... (05 Mar 2000) ...

pseudomyxoma
A gelatinous mass resembling a myxoma but composed of epithelial mucus. ... (05 Mar 2000) ...

pseudomyxoma peritonei
<radiology> Rupture of: ovarian pseudomucinous cystadenoma, appendicial mucocele, mucinous material in peritoneum, with or without diffuse abdominal calcification ... (12 Dec 1998) ...

pseudonarcotic
Inducing sleep by reason of a sedative effect, but not directly narcotic. ... (05 Mar 2000) ...

pseudoneoplasm
Synonym for pseudotumour ... 1. <oncology> An enlargement of nonneoplastic character which clinically resembles a true neoplasm so closely as to often be mistaken for such. ... 2. A condition, commonly associated with obesity in young females, of cerebral oedema with narrowed small ventricles but with increased intracranial pressure and frequen …

pseudoneurogenic bladder
Synonym for nonneurogenic neurogenic bladder ... <urology> Detrusor-sphincter incoordination with urinary incontinence, constipation, urinary tract infection, upper tract changes. ... Synonym: Hinman syndrome, pseudoneurogenic bladder. ... (05 Mar 2000) ...

pseudoneuroma
traumatic neuroma ...

pseudoneurotic schizophrenia
Schizophrenia in which the underlying psychotic process is masked by complaints ordinarily regarded as neurotic. ... (05 Mar 2000) ...

pseudonit
Synonym for hair cast ... 1. A cast composed of parakeratotic scales attached to scalp hair but freely movable up and down the hair shaft; found in scaling dermatitis of the scalp, including dandruff, psoriasis, and seborrheic dermatitis. ... Synonym: pseudonit. ... 2. A small, nodular accretion of epithelial cells and keratinous debris resulting from …

pseudopapilledema
Anomalous elevation of the optic disk; seen in severe hyperopia and optic nerve drusen. ... (05 Mar 2000) ...

pseudoparalysis
Apparent paralysis due to voluntary inhibition of motion because of pain, to incoordination, or other cause, but without actual paralysis. ... Synonym: pseudoparesis. ... (05 Mar 2000) ...

pseudoparaplegia
Apparent paralysis in the lower extremities, in which the tendon and skin reflexes and the electrical reactions are normal; the condition is sometimes observed in rickets. ... (05 Mar 2000) ...

pseudoparasite
A false parasite; may be either a commensal or a temporary parasite (the latter being an organism accidentally ingested and surviving briefly in the intestine). ... (05 Mar 2000) ...

pseudoparenchyma
In fungi, a tissue-like mass of modified hyphae. ... (05 Mar 2000) ...

pseudoparesis
Synonym: pseudoparalysis. ... 2. A condition marked by the pupillary changes, tremors, and speech disturbances suggestive of early paresis, in which, however, the serologic tests are negative. ... (05 Mar 2000) ...

pseudopelade
A scarring type of alopecia; usually occurs in scattered irregular patches; of uncertain cause. ... Synonym: pseudopelade of Brocq. ... Origin: pseudo-+ Fr. Pelade, disease that causes sporadic falling of hair ... (05 Mar 2000) ...

pseudopelade of Brocq
Synonym for pseudopelade ... A scarring type of alopecia; usually occurs in scattered irregular patches; of uncertain cause. ... Synonym: pseudopelade of Brocq. ... Origin: pseudo-+ Fr. Pelade, disease that causes sporadic falling of hair ... (05 Mar 2000) ...

pseudopericarditis
An artifact of auscultation resembling a friction rub, but due to movement of the tissue in the intercostal space when the diaphragm of the stethoscope is placed over the apex beat. ... (05 Mar 2000) ...

pseudoperitonitis
Synonym for peritonism ... A rarely used term for:1. A symptom complex marked by vomiting, pain, and shock associated with inflammation of any of the abdominal viscera in which the peritoneum is involved. ... 2. A neurosis in which the symptoms simulate those of peritonitis. ... Synonym: pseudoperitonitis. ... (05 Mar 2000) ...

pseudoperoxidase
Referring to the nonenzymatic, heat-stable peroxidase activity associated with haemproteins. ... (05 Mar 2000) ...

pseudophacos
Synonym: lenticulus. ... Origin: pseudo-+ G. Phakos, lens ... (05 Mar 2000) ...

pseudophakia
Presence of an intraocular lens after cataract extraction. ... (12 Dec 1998) ...

pseudophakodonesis
Excessive mobility of an intraocular lens implant. ... (05 Mar 2000) ...

pseudophlegmon
A noninflammatory circumscribed redness of the skin. ... Origin: pseudo-+ G. Phlegmone, inflammation ... (05 Mar 2000) ...

pseudophotesthesia
Synonym: photism. ... Origin: pseudo-+ G. Phos, light, + aisthesis, sensation ... (05 Mar 2000) ...

pseudophyllid
Common name for members of the order Pseudophyllidea. ... (05 Mar 2000) ...

Pseudophyllidea
An order of tapeworms with an aquatic life cycle, passing through coracidium, procercoid, and plerocercoid stages before developing into adults in fish, marine mammals, or fish-eating mammals; includes the broad fish tapeworm of humans, Diphyllobothrium latum. ... Origin: pseudo-+ G. Phyllon, leaf ... (05 Mar 2000) ...

pseudoplastic fluid
A fluid which exhibits shear thinning. ... (05 Mar 2000) ...

pseudoplatelet
Any of the fragments of neutrophils which may be mistaken for platelets, especially in peripheral blood smears of leukaemic patients. ... (05 Mar 2000) ...

pseudoplegia
Synonym: pseudoapoplexy. ... Origin: pseudo-+ G. Plege, a stroke ... (05 Mar 2000) ...

pseudopocket
A pocket, adjacent to a tooth, resulting from gingival hyperplasia and oedema but without apical migration of the epithelial attachment. ... (05 Mar 2000) ...

pseudopod
<cell biology> Blunt ended projection from a cell usually applied to cells that have an amoeboid pattern of movement. ... (18 Nov 1997) ...

pseudopodia
Temporary cytoplasmic extrusions in amebae or characteristically sarcodine protozoa which function in locomotion and/or in feeding by engulfing food. One or more may be formed at a time by a given cell. ... (12 Dec 1998) ...

pseudopodium
The protrusion of an amoeboid cell formed by the extrusion or streaming of the cytoplasm (but still enclosed in the membrane) for the purpose of movement or feeding. ... (09 Oct 1997) ...

pseudopolydystrophy
Synonym for mucolipidosis III ... <biochemistry> Mucolipidosis with mild Hurler-like symptoms, restricted joint mobility, short stature, mild mental retardation, and dysplastic skeletal changes, especially of the hip. Aortic and mitral valve disease are often present. ... It is associated with a deficiency of UDP-N-acetyl glucosamine and lysoso …

pseudopolyp
A projecting mass of granulation tissue, large numbers of which may develop in ulcerative colitis; may become covered by regenerating epithelium. ... Synonym: inflammatory polyp. ... (05 Mar 2000) ...

pseudoporphyria
A condition clinically and ultrastructurally identical to porphyria but with no abnormality in porphyrin excretion, consequent to drug ingestion or haemodialysis. ... (05 Mar 2000) ...

pseudopregnancy
False pregnancy. The term sometimes refers also to the premenstrual stage of the endometrium because it resembles the endometrium just before implantation of the blastocyst. ... (12 Dec 1998) ...

pseudoprognathism
An acquired projection of the mandible due to occlusal disharmonies which force the mandible forward; the mandibular condyles are forward of their expected functional position. ... (05 Mar 2000) ...

pseudopseudohypoparathyroidism
An incomplete form of pseudohypoparathyroidism characterised by the same constitutional features (short stature, obesity, short metacarpals, and ectopic calcification) but by normal levels of calcium and phosphorus in the serum. ... (12 Dec 1998) ...

pseudopterosins
<pharmacology> Class of natural compounds (diterpene pentose glycosides) isolated from the soft coral Pseudopterogorgonia elisabethae and that interfere with arachidonic acid metabolism. Have anti-inflammatory and analgesic properties. ... (18 Nov 1997) ...

pseudopterygium
Adhesion of the conjunctiva to the cornea, occurring after injury. ... (05 Mar 2000) ...

pseudoptosis
A condition resembling an inability to elevate the eyelid, due to blepharophimosis, blepharochalasis, or some other affection. ... Synonym: false blepharoptosis. ... Origin: pseudo-+ G. Ptosis, a falling ... (05 Mar 2000) ...

pseudopuberty
Condition characterised by the development of a varying number of the somatic and functional changes typical of puberty; commonly caused by the hormonal secretions of a tumour and typically arises before the chronological age of puberty. ... Precocious pseudopuberty, the development of pseudopuberty in very young children; commonly characterised by …

pseudorabies
A highly contagious herpes virus infection affecting the central nervous system of swine, cattle, dogs, cats, rats, and other animals. ... (12 Dec 1998) ...

pseudorabies virus
A herpesvirus causing pseudorabies in swine. ... Synonym: Aujeszky's disease virus. ... (05 Mar 2000) ...

pseudoreaction
A false reaction; one not due to specific causes in a given test. ... (05 Mar 2000) ...

pseudoreplica
A specimen for electron microscopic examination obtained by depositing particles from a virus-containing suspension on an agarose surface, covering the surface with a plastic-containing solution, and, after evaporation of the solvent, removing the film along with enmeshed particles by floating it onto the surface of a uranyl acetate solution. ... (0 …

pseudoretinitis pigmentosa
A widespread pigmentary mottling of the retina that may follow severe eye trauma, especially from a penetrating injury. ... (05 Mar 2000) ...

pseudorheumatism
Joint or muscle symptoms without objective findings and with no apparent underlying causes. ... (05 Mar 2000) ...

pseudorickets
renal rickets ...

pseudorosette
Perivascular radial arrangement of neoplastic cells around a small blood vessel. ... See: rosette. ... (05 Mar 2000) ...

pseudorubella
Synonymous with Roseola infantum, a viral disease of infants sudden onset of high fever which lasts several and young children with days and then suddenly subsides leaving in its wake a fine red rash. The causative agent is herpes virus type 6 so the disease is known as sixth disease. Also as exanthem subitum (sudden rash), roseola, roseola infanti …

pseudosarcoma
<tumour> A bulky polyploid malignant tumour of the oesophagus, composed of spindle cells with a focus of squamous cell carcinoma; spindle cells may be epithelial or metaplastic malignant fibroblasts. ... (05 Mar 2000) ...

pseudosarcomatous fasciitis
Synonym for nodular fasciitis ... A rapidly-growing tumour-like proliferation of fibroblasts, not thought to be neoplastic, with mild inflammatory exudation occurring in fascia; the fibrosis may infiltrate surrounding tissue but does not progress indefinitely or metastasize. ... Synonym: pseudosarcomatous fasciitis. ... (05 Mar 2000) ...

pseudoscarlatina
Erythema with fever, due to causes other than Streptococcus pyogenes. ... (05 Mar 2000) ...

pseudosclerosis
1. Inflammatory induration or fatty or other infiltration simulating fibrous thickening. ... Synonym: Wilson's disease. ... Origin: pseudo-+ G. Sklerosis, hardening ... (05 Mar 2000) ...

pseudoseizure
A psychogenic seizure. ... (05 Mar 2000) ...

pseudosmallpox
Synonym for alastrim ... A mild form of smallpox caused by a less virulent strain of the virus. ... Synonym: Cuban itch, Kaffir pox, milkpox, pseudosmallpox, pseudovariola, variola minor, West Indian smallpox, whitepox. ... Origin: Pg. Alastrar, to scatter over ... (05 Mar 2000) ...

pseudosmia
Subjective sensation of an odour that is not present. ... Origin: pseudo-+ G. Osme, smell ... (05 Mar 2000) ...

pseudospatial gradient sensing
<cell biology> Mechanism for sensing a gradient of a diffusible chemical in which the cell sends protrusions out at random, up gradient protrusions are stabilised by positive feedback (because receptor occupancy is rising with time) and others are transitory because of adaptation. Possibly the mechanism by which neutrophils sense chemotactic …