| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |
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| PSS | painful shoulder syndrome; physiologic saline solution; porcine stress syndrome; primary Sjogren syn... |
| RHS | Ramsay Hunt syndrome; Rapp-Hodgkin syndrome; reciprocal hindlimb-scratching [syndrome]; right hand s... |
| RMS | rectal morphine sulfate [suppository]; red man syndrome; repetitive motion syndrome; respiratory mus... |
| RTS | real time scan; Rett syndrome; revised trauma score; right toestrike; Rothmund-Thomson syndrome; Rub... |
| Maranon's syndrome | <syndrome> A syndrome characterised by ovarian insufficiency, scoliosis, and flat-feet. (05 Mar 2000) |
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| paraneoplastic syndrome | <oncology, syndrome> A collection of symptoms or clinical signs that are found in patients that have malignant disease. By definition, the signs and symptoms are not produced by a direct effect of a tumour or its metastasis nor due to direct invasion, compression, metastasis, infection, nutritional deficiency or treatment of the underlying neoplasm. Paraneoplastic syndromes can arise from tumour produced biologically active polypeptides or proteins, autoimmunity or immune complex production and immune suppression, blockade of the normal effect of a hormone, the release of substances from tumour associated endothelium which are not normally released and finally unknown causes. The best characterised paraneoplastic syndrome is the syndrome of inappropriate ADH. (15 Dec 1997) |
| Marchiafava-Micheli syndrome | An infrequent disorder with insidious onset (usually in the third or fourth decade) and chronic course, characterised by episodes of haemolytic anaemia, haemoglobinuria (chiefly at night), pallor, icterus or bronzing of the skin, a moderate degree of splenomegaly, and sometimes hepatomegaly; red blood cells are usually macrocytic and vary considerably in size, but there is no evidence of spherocytosis, erythrophagocytosis, or abnormal leukocytes. The disorder is a result of an abnormality of the red cell membrane which makes the red cell unusually sensitive to lysis by complement. Synonym: Marchiafava-Micheli anaemia, Marchiafava-Micheli syndrome. (05 Mar 2000) |
| Marcus Gunn syndrome | <syndrome> An increase in the width of the eye lids during chewing, sometimes with a rhythmic elevation of the upper lid when the mouth is open and ptosis when the mouth is closed. Synonym: Gunn phenomenon, Gunn's syndrome, jaw-winking phenomenon, jaw-working reflex, Marcus Gunn phenomenon, Marcus Gunn syndrome. (05 Mar 2000) |
| Marfan's syndrome | <syndrome> A hereditary condition of the connective tissue. Symptoms and signs include tall lean body type, irregular or unsteady gait, long extremities (including fingers and toes), abnormal joint flexibility, flat feet, stooped shoulders, dislocation of the optic lens and aneurysms of the aorta. Affects 1 in 50,000 people. Probably a collagen fibril assembly disorder since it can be mimicked in mice by aminonitriles that interfere with crosslinking. Inheritance: autosomal dominant. (06 Oct 1997) |
| marfan syndrome | <radiology> Connective-tissue disorder: autosomal dominant, 15% sporadic, cardiovascular system (probable cause of death in 93%), aortic aneurysm (mostly ascending), dilatation of aortic sinuses, aortic dissection, coarctation, musculoskeletal system, tall stature, long limbs, arachnodactyly, lax joints, scoliosis (60%) / kyphosis / pectus, eye, lens subluxation Cf: homocystinuria More info: Marfan syndrome (12 Dec 1998) |
| Marie-Robinson syndrome | <syndrome> Insomnia and mild melancholia associated with alimentary levulosuria. (05 Mar 2000) |
| Marinesco-Garland syndrome | <syndrome> A rare neurologic disorder characterised by cerebellolental degeneration with mental retardation; autosomal recessive inheritance. Synonym: cataract-oligophrenia syndrome, Marinesco-Sjogren syndrome, Torsten Sjogren's syndrome. (05 Mar 2000) |
| Marinesco-Sjogren syndrome | <syndrome> A rare neurologic disorder characterised by cerebellolental degeneration with mental retardation; autosomal recessive inheritance. Synonym: cataract-oligophrenia syndrome, Marinesco-Sjogren syndrome, Torsten Sjogren's syndrome. (05 Mar 2000) |
| verner-morrison syndrome | <radiology> WDHA syndrome, watery diarrhoea, hypokalaemia, achlorhydria, vasoactive intestinal peptide (VIP) secreted by, pancreatic isleT-cell tumour (VIPoma) (12 Dec 1998) |
| Vernet's syndrome | <syndrome> A syndrome characterised by paralysis of the motor components of the glossopharyngeal, vagus, and accessory cranial nerves as they lie in the posterior fossa; it is most commonly the result of head injury. (05 Mar 2000) |
| Maroteaux-Lamy syndrome | <biochemistry, syndrome> An error of mucopolysaccharide metabolism due to deficiency of the lysosomal enzyme arylsulphatase B. It is characterised by excretion of dermatan sulfate in the urine, growth retardation, lumbar kyphosis, sternal protrusion, genu valgum, usually hepatosplenomegaly, and no mental retardation. Onset occurs after two years of age. Inheritance: autosomal recessive. Synonym: polydystrophic dwarfism, mucopolysaccharidosis type VI. (05 Mar 2000) |
| Marshall syndrome | <syndrome> Syndrome of mid-face hypoplasia, cataract, sensorineural hearing loss, and hypohidrosis. It is disputed whether this syndrome is distinct from Stickler's syndrome. (05 Mar 2000) |
| carotid artery occlusive syndrome | <syndrome> Aortic arch syndrome, also referred to by many as vertebral-basilar artery disease, carotid artery occlusive syndrome and subclavian steal syndrome. Characterised by a constellation of signs and symptoms which occur secondary to abnormalities in the major arteries which extend off of the aortic arch. These abnormalities are structural and most often secondary to the effects of atherosclerosis, blood clots, trauma or a congenital abnormality. Symptoms of this condition include various neurologic symptoms, reduction in pulse and changes in blood pressure. (27 Sep 1997) |
| carotid sinus syndrome | <syndrome> Stimulation of a hyperactive carotid sinus, causing a marked fall in blood pressure due to vasodilation, cardiac slowing, or both; syncope with or without convulsions or A-V block may occur. Synonym: Charcot-Weiss-Baker syndrome. (05 Mar 2000) |