| Grasset's sign | <clinical sign> Normal contraction of the sternocleidomastoid muscle on the paralysed side in cases of hemiplegia. (05 Mar 2000) |
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| Grey Turner's sign | <clinical sign> Local areas of discoloration about the umbilicus and in the region of the loins, in acute haemorrhagic pancreatitis and other causes of retroperitoneal haemorrhage. (05 Mar 2000) |
| Griesinger's sign | <clinical sign> Erythema and oedema over the posterior mastoid process resulting from septic thrombosis of the mastoid emissary vein and thrombophlebitis of the sigmoid sinus. (05 Mar 2000) |
| Grisolle's sign | <clinical sign> An obsolete sign; in smallpox, the continued presence and palpability of papules when the skin is stretched. (05 Mar 2000) |
| Grocco's sign | <clinical sign> Acute dilation of the heart following a muscular effort, described in Graves' disease; also occurring in various forms of myocardiopathy, extension of the liver dullness several centimeters to the left of the midspinal line in cases of enlargement of that organ. (05 Mar 2000) |
| rigler sign | <radiology> Bowel wall outlined by air on inside and outside, indicates pneumoperitoneum (12 Dec 1998) |
| groove sign | <clinical sign> Large, hard, fixed, and extremely tender lymph nodes in the groin above and below the inguinal ligament, with a groove along the ligament; characteristic of lymphogranuloma venereum. (05 Mar 2000) |
| Ripault's sign | <clinical sign> A sign of death, consisting in a permanent change in the shape of the pupil produced by unilateral pressure on the eyeball. (05 Mar 2000) |
| Metenier's sign | <clinical sign> Easy eversion of the upper eyelid in Ehlers-Danlos syndrome. (05 Mar 2000) |
| Rocher's sign | <clinical sign> In a knee examination, the forward or backward sliding of the tibia indicating laxity or tear of the anterior (forward slide) or posterior (backward slide) cruciate ligaments of the knee. Synonym: drawer test, Rocher's sign. (05 Mar 2000) |
| Pfuhl's sign | <clinical sign> The pressure of pus within a subphrenic abscess rises during inspiration and falls during expiration, the reverse of what happens in the case of a purulent collection above the diaphragm; when the diaphragm is paralysed this distinction is lost. (05 Mar 2000) |
| Gunn's crossing sign | <clinical sign> Retinal arteriovenous crossing with venous compression in hypertensive disease. (05 Mar 2000) |
| Gunn's sign | <clinical sign> Compression of the underlying vein at arteriovenous crossings seen ophthalmoscopically in arteriolar sclerosis, on alternate stimulation with light, the pupil of an eye with optic nerve transmission defect constricts poorly or even dilates when stimulated (a relative afferent pupillary defect). Synonym: Marcus Gunn's sign. (05 Mar 2000) |
| Guyon's sign | <clinical sign> Ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumour, the hypoglossal nerve lies directly upon the external carotid artery, whereby this vessel may be distinguished from the internal carotid when ligation is necessary. (05 Mar 2000) |
| Romana's sign | <clinical sign> Marked oedema of one or both eyelids, usually a unilateral palpebral oedema, thought to be a sensitization response to the bite of a triatomine bug infected with Trypanosoma cruzi, and a strong suggestion of acute Chagas' disease. (05 Mar 2000) |