| Comby's sign | <clinical sign> An early sign of measles, consisting in thin whitish patches on the gums and buccal mucous membrane, formed of desquamating epithelial cells. (05 Mar 2000) |
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| comet sign | In chest radiology, the curved appearance of pulmonary arteries and veins associated with round atelectasis, fibrosis associated with organizing pleurisy. Synonym: comet tail sign. (05 Mar 2000) |
| comet tail sign | In chest radiology, the curved appearance of pulmonary arteries and veins associated with round atelectasis, fibrosis associated with organizing pleurisy. Synonym: comet tail sign. (05 Mar 2000) |
| commemorative sign | A phenomenon pointing to the previous existence of some disease other than the one present at the time. (05 Mar 2000) |
| placental sign | <clinical sign> Slight endometrial oozing of blood which occurs in certain animals and sometimes in women at the time of implantation of the fertilised ovum; in women, if the blood appears externally it may be mistaken for a scanty menstrual period. (05 Mar 2000) |
| Mosler's sign | <clinical sign> Tenderness over the sternum in a patient with acute myeloblastic anaemia. (05 Mar 2000) |
| Comolli's sign | <clinical sign> In cases of fracture of the scapula, a typical triangular cushion-like swelling appears, corresponding to the outline of the scapula. (05 Mar 2000) |
| Wilder's sign | <clinical sign> A slight twitch of the eyeball when changing its movement from abduction to adduction or the reverse, noted in Graves' disease. (05 Mar 2000) |
| wimberger sign | <radiology> Bilateral metaphyseal destruction in upper medial tibias, congenital syphilis, less likely: bacterial osteomyelitis, hamartomosis, hyperparathyroidism (12 Dec 1998) |
| Winterbottom's sign | <clinical sign> Swelling of the posterior cervical lymph nodes, characteristic of early stages of African trypanosomiasis; useful for surveys or control of migrations from endemic areas of persons with preclinical infections. (05 Mar 2000) |
| Muerhrcke's sign | <clinical sign> Apparent leukonychia with white bands parallel to lanula of the nails, seen in hypoalbuminaemia. Synonym: Muehrcke's bands. (05 Mar 2000) |
| Muller's sign | <clinical sign> In aortic insufficiency, rhythmical pulsatory movements of the uvula, synchronous with the heart's action; accompanied by swelling and redness of the velum palati and tonsils. (05 Mar 2000) |
| Munson's sign | <clinical sign> In keratoconus, the extra bowing of the lower eyelid caused by the misshapen cornea as the eye rotates downward. (05 Mar 2000) |
| wrist sign | <clinical sign> In Marfan's syndrome, when the wrist is gripped with the opposite hand, the thumb and fifth finger overlap appreciably. (05 Mar 2000) |
| Murphy's sign | <clinical sign> Pain on palpation of the right subcostal area during inspiration frequently associated with acute cholecystitis. (05 Mar 2000) |