| Allis' sign | <clinical sign> In fracture of the neck of the femur, the trochanter rides up, relaxing the fascia lata, so that the finger can be sunk deeply between the great trochanter and the iliac crest. (05 Mar 2000) |
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| Amoss' sign | <clinical sign> In painful flexion of the spine, it is necessary to support a sitting position by extending the arms behind the torso with the weight placed on the hands. (05 Mar 2000) |
| Anghelescu's sign | <clinical sign> In vertebral tuberculosis, painful or impossible flexion of the spine when the patient attempts to rest weight on the heels and occiput. (05 Mar 2000) |
| antecedent sign | <clinical sign> A sign that appears during the prodrome of a disease. Synonym: antecedent sign. (05 Mar 2000) |
| assident sign | <clinical sign> A finding frequently but not consistently present in a disease. Synonym: assident sign. (05 Mar 2000) |
| Auenbrugger's sign | <clinical sign> An epigastric prominence seen in cases of marked pericardial effusion. (05 Mar 2000) |
| Aufrecht's sign | <clinical sign> An obsolete sign: diminished breath sounds in the trachea just above the jugular notch, in cases of stenosis. (05 Mar 2000) |
| B6 bronchus sign | In lung radiology, appearance of an air bronchogram of the superior segmental bronchus of the lower lobe because of segmental atelectasis or consolidation. (05 Mar 2000) |
| Babinski's sign | <clinical sign> Extension of the great toe and abduction of the other toes instead of the normal flexion reflex to plantar stimulation, considered indicative of pyramidal tract involvement ("positive" Babinski). Synonym: Babinski reflex, Babinski's phenomenon, great-toe reflex, paradoxical extensor reflex, toe phenomenon. (05 Mar 2000) |
| Baccelli's sign | <clinical sign> An obsolete sign: good conduction of the whisper in nonpurulent pleural effusions. Synonym: aphonic pectoriloquy. (05 Mar 2000) |
| Ballance's sign | <clinical sign> The presence of a dull percussion note in both flanks, constant on the left side but shifting with change of position on the right, said to indicate ruptured spleen; the dullness is due to the presence of blood, fluid on the right side but coagulated on the left. (05 Mar 2000) |
| Bamberger's sign | <clinical sign> Jugular pulse in tricuspid insufficiency. Synonym: allochiria. (05 Mar 2000) |
| bandage sign | A tourniquet test for capillary fragility, often positive in the presence of severe thrombocytopenia. See: capillary fragility test. Synonym: bandage sign, Hess' test, Rumpel-Leede sign. (05 Mar 2000) |
| Barany's sign | <clinical sign> In cases of ear disease, in which the vestibule is healthy, injection into the external auditory canal of water below the body temperature (18캜 or lower) will cause rotary nystagmus toward the opposite side; when the injected fluid is above the body temperature (41캜 or higher) the nystagmus will be toward the injected side; if the labyrinth is diseased or nonfunctional there may be diminished or absent nystagmus. (05 Mar 2000) |
| Barre's sign | <clinical sign> if the hemiplegic is placed in the prone position with the limbs flexed at the knees, he is unable to maintain the flexed position on the side of the lesion but extends the leg. (05 Mar 2000) |