| acute compression triad | The rising venous pressure, falling arterial pressure, and decreased heart sounds of pericardial tamponade. Synonym: Beck's triad. (05 Mar 2000) |
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| acute spinal cord compression | <radiology> Signs and symptoms of cord compression show progression within 24 hours or less: pain, weakness, autonomic dysfunction, sensory loss, ataxia Diagnostic considerations: Primary or secondary malignancy of epidural space or vertebrae, Trauma, Inflammatory process, Osteoarthritis REF: MacNeil BJ, Abrams HL. Brigham and Women's Hospital Handbook of Diagnostic Imaging. Chapter 35. (12 Dec 1998) |
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| Beck's triad | The rising venous pressure, falling arterial pressure, and decreased heart sounds of pericardial tamponade. Synonym: Beck's triad. (05 Mar 2000) |
| Bezold's triad | Diminished perception of the deeper tones, retarded bone conduction, and negative Rinne's test, pointing, in the absence of objective signs, to otosclerosis. (05 Mar 2000) |
| Charcot's triad | In multiple (disseminated) sclerosis, the three symptoms: nystagmus, tremor, and scanning speech, combination of jaundice, fever, and upper abdominal pain that occurs as a result of cholangitis. (05 Mar 2000) |
| portal triad | Branches of the portal vein, hepatic artery, and the biliary ducts bound together in the perivascular fibrous capsule or portal tract as they ramify within the substance of the liver. Synonym: hepatic triad, triad. (05 Mar 2000) |
| Saint's triad | The concurrence of hiatal hernia, diverticulosis, and cholelithiasis. (05 Mar 2000) |
| hepatic triad | Branches of the portal vein, hepatic artery, and the biliary ducts bound together in the perivascular fibrous capsule or portal tract as they ramify within the substance of the liver. Synonym: hepatic triad, triad. (05 Mar 2000) |
| Hull's triad | <clinical sign> The association of diastolic gallop, anasarca, and small pulse pressure. (05 Mar 2000) |
| Hutchinson's triad | Parenchymatous keratitis, labyrinthine disease, and Hutchinson's teeth, significant of congenital syphilis. (05 Mar 2000) |
| triad | The junction between the T tubules and the sarcoplasmic reticulum in striated muscle. (18 Nov 1997) |
| Kartagener's triad | <syndrome> The trio of sinusitis, bronchitis and situs inversus (lateral reversal of the position all organs in the chest and abdomen with the heart and stomach on the right, the liver on the left, etc.--opposite or inverted from their usual position). (12 Dec 1998) |
| Fallot's triad | Combination of pulmonary valve stenosis and atrial septal defect with right ventricular hypertrophy. (12 Dec 1998) |
| adiabatic compression | <radiobiology> Compression (of a gas, plasma, etc.) not accompanied by gain or loss of heat from outside the system. For a plasma in a magnetic field, a compression slow enough that the magnetic moment and other adiabatic invariants of the plasma particles may be taken as constant. (09 Oct 1997) |
| cerebral compression | Pressure upon the intracranial tissues by an effusion of blood or cerebrospinal fluid, an abscess, a neoplasm, a depressed fracture of the skull, or an oedema of the brain. Synonym: compression of brain. (05 Mar 2000) |
| cervical compression syndrome | <syndrome> Pain, paresthesias, and sometimes weakness in the area of the distribution of one or more cervical roots, due to pressure of a protruded cervical intervertebral disc. Synonym: cervical compression syndrome. (05 Mar 2000) |