Guyon sign
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Gu·yon sign
(gē-yon[h]'),1. ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumor;
2. the hypoglossal nerve lies directly on the external carotid artery, whereby this vessel may be distinguished from the internal carotid when ligation is necessary.
Farlex Partner Medical Dictionary © Farlex 2012
Gu·yon sign
(gē-yōn[h]' sīn)1. Ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumor.
2. The hypoglossal nerve lies directly on the external carotid artery, whereby this vessel may be distinguished from the internal carotid when ligation is necessary.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Guyon, Felix J.C.
(gē-yōn′)Fr. surgeon, 1831–1920.
Guyon canal
A tunnel on the ulnar side of the wrist formed by the hook of the hamate and pisiform bones. The ulnar nerve may be compressed at this site in long-distance bicyclists, by falling on the wrist, or by repetitive wrist actions.
Guyon sign
Ballottement of the kidney.
sign
(sin) [L. signum, a mark, token]1. A symbol or abbreviation, esp. one used in pharmacy.
2. Any objective evidence or manifestation of an illness or disordered function of the body. Signs are apparent to observers, whereas symptoms may be obvious only to the patient. See: symptom
3. To use sign language to communicate.
1 Abadie sign
See: 1 Abadie sign2 Abadie sign
See: 2 Abadie signAhlfeld sign
See: Ahlfeld signair bronchogram sign
Radiographic appearance of an air-filled bronchus as it passes through an area of increased anatomic density, as in pulmonary edema and pneumonia.
Allis sign
See: Allis, Oscar HuntingtonAmoss sign
See: Amoss signanterior drawer sign
Anterior drawer test.Auenbrugger sign
See: Auenbrugger signAufrecht sign
See: Aufrecht signAuspitz sign
See: Auspitz signBabinski sign
See: Babinski, Joseph-François-Felix.Battle sign
See: Battle signbeaten-silver skull sign
The thinned, irregular appearance of the skull, as seen on x-ray examination of children with obstructive hydrocephalus.
belly dancer sign
Movement of the umbilicus of the newborn while breathing. It is a rarely observed physical finding in newborn infants born with paralysis of one half of the diaphragm.
Bjerrum sign
See: Bjerrum, Jannik PetersenBeevor sign
See: Beevor signBloomberg sign
Rebound tenderness.Branham sign
See: Branham signBroadbent sign
See: Broadbent signBrudzinski sign
See: Brudzinski signBryant sign
See: Bryant signCardarelli sign
See: Cardarelli signCarnett sign
See: Carnett signCarvallo sign
See: Carvallo signCastell sign
See: Castell signChadwick sign
See: Chadwick signchandelier sign
Intense pelvic and lower abdominal pain brought on by palpation of the cervix. The sign points to the presence of pelvic inflammatory disease.
Chapman sign
See: Chapman signChvostek sign
See: Chvostek signCleeman sign
See: Cleeman signComolli sign
See: Comolli signCoopernail sign
See: Coopernail signcorona radiata sign
Filaments extending outward from a radiographically visualized mass. The presence of such filaments suggests that the mass is growing centrifugally and therefore may be malignant.
Courvoisier sign
See: Courvoisier, Ludwig GeorgCullen sign
See: Cullen signDance sign
See: Dance signDarier sign
See: Darier, Ferdinand JeanDavidsohn sign
See: Davidsohn signde Musset sign
See: Musset signdimple sign
A sign to differentiate dermatofibroma, a benign lesion, from nodular melanoma, which it may mimic. On application of lateral pressure with the thumb and index finger, the dermatofibroma becomes dimpled or indented, whereas melanomas, melanocytic nevi, and normal skin protrude above the initial plane.
Dorendorf sign
See: Dorendorf signdrawer sign
Drawer test. See: anterior drawer testecho sign
Repetition of the closing word of a sentence, a sign of epilepsy or other brain conditions.
Faget sign
See: Faget signfallen lung sign
The radiologic appearance of traumatic transection or rupture of the trachea or a main stem bronchus, consisting of a collapsed lung that seems to dangle from the hilum by only its vascular attachments. Pneumothorax, pneumomediastinum, and subcutaneous emphysema are sometimes seen with tracheobronchial tears.
flag sign
A peculiar change in hair color in which the hair becomes discolored in a band perpendicular to its long axis. This is seen in kwashiorkor and indicates a period of severe malnutrition.
flick sign
Rapid back and forth movement of the hand and fingers when patients experience painful symptoms in them. The finding is an imprecise and unreliable physical diagnostic sign in patients with carpal tunnel syndrome.
Frank sign
See: Frank signFriedreich sign
See: Friedreich, NikolausFroment sign
See: Froment signGaleazzi sign
See: Galeazzi signGauss sign
See: Gauss signGoodell sign
See: Goodell signGottron sign
See: Gottron signGowers sign
See: Gowers, Sir William RichardGrancher sign
See: Grancher signGrey Turner sign
See: Grey Turner signGuyon sign
See: Guyon, Felix J.C.hair collar sign
In the newborn, a ring of long, dark, coarse hair surrounding a midline nodule on the scalp. This may indicate neural tube closure defect.
hamburger sign
Naked facet sign.harlequin sign
A benign, transient color change seen in neonates in which one half of the body blanches while the other half becomes redder, with a clear line of demarcation.
Hatchcock sign
See: Hatchcock signHegar sign
See: Hegar signHicks sign
See: Hicks signHill sign
See: Hill signHochsinger sign
See: Hochsinger signholster sign
Poikiloderma of the upper outer thigh. It is a characteristic finding in patients with dermatomyositis.
Homans sign
See: Homans signHoover sign
See: Hoover signJacquemier sign
See: Jacquemier signjersey finger sign
The inability to flex the distal interphalangeal joint of a finger as the result of a rupture of the flexor digitorum profundus tendon. The patient is unable to make a fist.
jump sign
During physical examination, an involuntary reaction to stimulation of a tender area or trigger point. This may take the form of wincing or sudden jerking of the part being examined, of adjacent areas, or even of the entire body. This sign should not be confused with the startle reaction seen in Jumping Frenchmen of Maine.
Kehr sign
See: Kehr signKernig sign
See: Kernig signKorányi sign
See: Korányi signKussmaul sign
See: Kussmaul, AdolphLasègue sign
SEE:
See: Lasègue signLazarus sign
See: Lazarus signlemon sign
Scalloping of the frontal bones of the fetus, a sign in prenatal ultrasonography in which the bones resemble the shape of a lemon. It is indicative of fetal cranial abnormalities found in the second trimester that can be markers for a neural tube defect.
Levine sign
See: Levine signLhermitte sign
See: Lhermitte signMannkopf sign
See: Mannkopf signMarie sign
See: Marie, Pierre MarieMarkle sign
See: Markle signMayne sign
See: Mayne signMcBurney sign
See: McBurney, CharlesMcMurray sign
See: McMurray, Thomas PorterMöbius sign
See: Möbius, Paul JuliusMurphy sign
See: Murphy, John BenjaminMusset sign
See: Musset signMyerson sign
See: Myerson signnaked facet sign
The radiographic appearance of spinal facet joints that have been disrupted by flexion injuries to the thoracic or lumbar spine. CT scanning of the joints shows that the inferior facets of the upper vertebrae are not directly aligned above the superior facets of the lower vertebrae.
Synonym: hamburger signnegative sign
Minus sign (-) used in subtraction to denote something that is below zero or to indicate a lack.
NFL touchdown sign
Touchdown sign.Nikolsky sign
See: Nikolsky signobjective sign
In physical diagnosis, a sign that can be seen, heard, measured, or felt by the diagnostician. Finding of such sign(s) can be used to confirm or deny the diagnostician's impressions of the suspected disease.
Synonym: physical signobturator sign
Pain on inward rotation of the hip, which stretches the obturator internus muscle. The result may be positive in acute appendicitis.
Oliver sign
See: Oliver signorbicular sign
, orbicularis signRévilliod sign.physical sign
Objective sign.Pins sign
See: Pins signPopeye sign
See: Popeye sign.positive signs of pregnancy
Assessment findings present only during pregnancy: fetal heart tones, fetal movements felt by the examiner, and fetal visualization by sonogram.
postural vital signs
Measurement of the blood pressure and pulse when a patient is first lying, then sitting, and finally standing. See: orthostatic vital signs determination.
Potain sign
See: Potain, Pierre Charles ÉdouardPratt sign
See: Pratt signPrehn sign
See: Prehn signpresumptive sign of pregnancy
Any of the signs and symptoms commonly associated with pregnancy that may be present in other conditions.
See: pregnancyprobable sign of pregnancy
Any of the objective findings that strongly suggest but do not confirm pregnancy.
See: pregnancypsoas sign
Abdominal pain produced by extension of the hip. The sign indicates a retrocecal or retroperitoneal lesion.
Queckenstedt sign
See: Queckenstedt signQueen Anne sign
See: Queen Anne signraccoon sign
Periorbital ecchymosis. It may be present in patients who have a basilar skull fracture.
Raimiste sign
Raimiste phenomenon.Ransohoff sign
See: Ransohoff signRemak sign
See: Remak signRévilliod sign
See: Révilliod signRipault sign
See: Ripault signRomana sign
See: Romana signRomberg sign
See: Romberg signRosenbach sign
See: Rosenbach, OttomarRovsing sign
See: Rovsing signScarf sign
See: Scarf signSchamroth sign
See: Schamroth signscrotal sign of Bryant
Bryant sign.shawl sign
The presence of pigmented skin overlying the neck, upper back, and shoulders. It is a characteristic finding in patients with dermatomyositis.
soft sign
Any of a number of signs that, considered collectively, are felt to indicate the presence of damage to the central nervous system. These signs include incoordination, visual motor difficulties, nystagmus, the presence of associated movements, and difficulties with motor control.
solar eclipse sign
The appearance of an intussusception on a barium enema when the encircling bowel is seen in line with the ensheathed bowel lumen. The cylindrical ring of the intussusception captures radiographic contrast and resembles the corona seen around the sun during a solar eclipse.
spinnaker sail sign
An outline of the thymus of a child by radiolucent lines. It is seen on chest x-ray examinations of children with pneumomediastinum.
Stabler sign
See: Stabler signsteeple sign
Narrowing of the column of subglottic air in the trachea, seen on anteroposterior radiographs of the neck in children with croup.
Stellwag sign
See: Stellwag signstring sign
In gastrointestinal radiology, extreme narrowing of a segment of the terminal ileum (in Crohn disease) or of the pylorus (in congenital pyloric stenosis).
Strümpell sign
See: Strümpell, Adolf G. G. vonsunset sign
An assessment finding often associated with hydrocephaly in newborns; the newborn's eyes are open with the irises directed downward, resembling the sun setting below the horizon.
Tanyoz sign
See: Tanyoz signTarnier sign
See: Tarnier signtheater sign
Pain in the anterior knee that is felt after prolonged sitting. It is a symptom sometimes reported by patients with patellofemoral pain syndrome.
thumb sign
Protrusion of the thumb across the palm and beyond the clenched fist; seen in Marfan syndrome.
Tinel sign
See: Tinel signtouchdown sign
Inability to raise the arms overhead, a finding in patients with adhesive capsulitis of the shoulder.
Synonym: overhead arm raise testTournay sign
See: Tournay signTrendelenburg sign
See: Trendelenburg signTrousseau sign
See: Trousseau, ArmandUhthoff sign
See: Uhthoff signvital signs
The four physical signs concerning functions essential to life: pulse, rate of respiration, blood pressure, and temperature. Some health care professionals consider a patient's level of pain to be a fifth vital sign although this is not accepted by all parties. While all health care professionals agree that a patient's experience of pain is a critical feature of his or her adaptation to illness, the traditional vital signs are objectively measurable and verifiable, while the level of pain is considered by many to be experiential or subjective.
von Graefe sign
See: Graefe, Albrecht vonWaddell sign
See: Waddell signWalker-Murdoch sign
See: Walker-Murdoch sign.Westermark sign
See: Westermark signMedical Dictionary, © 2009 Farlex and Partners
Guyon,
Felix J.C., French surgeon, 1831-1920.Guyon amputation - amputation above the malleoli, a modification of Syme amputation.
Guyon bougie
Guyon canal
Guyon catheter guide
Guyon clamp
Guyon curettage
Guyon dilator
Guyon exploratory bougie
Guyon isthmus - an elongated constriction at the junction of the body and cervix of the uterus. Synonym(s): isthmus of uterus
Guyon sign - ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumor.
Guyon sound
Guyon ureteral sound
Guyon vessel clamp
Medical Eponyms © Farlex 2012