| AFCR | American Federation for Clinical Research |
|---|---|
| AIDSDRUGS | clinical trials of acquired immunodeficiency drugs [MEDLARS data base] |
| AIDSTRIALS | clinical trials of acquired immunodeficiency syndrome drugs [MEDLARS data base] |
| ASCH | American Society of Clinical Hypnosis |
| ASCI | acute spinal cord injury; American Society for Clinical Investigation |
| Bozzolo's sign | <clinical sign> Pulsating vessels in the nasal mucous membrane, noted occasionally in thoracic aneurysm. (05 Mar 2000) |
|---|---|
| Branham's sign | <clinical sign> Bradycardia following compression or excision of an arteriovenous fistula. (05 Mar 2000) |
| Braxton Hicks sign | <clinical sign> Irregular uterine contractions occurring after the third month of pregnancy. (05 Mar 2000) |
| Broadbent's sign | <clinical sign> A retraction of the thoracic wall, synchronous with cardiac systole, visible anywhere, but particularly in the left posterior axillary line; a sign of adherent pericardium. (05 Mar 2000) |
| Brockenbrough sign | <clinical sign> Absolute decrease in pulse pressure of the beat immediately following a premature beat; a sign of idiopathic hypertrophic subaortic stenosis. (05 Mar 2000) |
| Brudzinski's sign | <clinical sign> A physical examination finding that can indicate inflammation of the meninges (meningitis), performed in two forms: passive flexion of one leg results in a similar movement on the opposite side or if the neck is passively flexed, flexion occurs in the legs. (27 Sep 1997) |
| Bryant's sign | <clinical sign> In dislocation of the shoulder, an abnormal position of axillary folds occurs. (05 Mar 2000) |
| burning drops sign | <clinical sign> In certain cases of perforated gastric ulcer, a sensation as of drops of hot liquid falling into the abdominal cavity or as of a stream of intensely hot liquid being poured into the cavity. (05 Mar 2000) |
| calcium sign | In chest radiography, displacement of the line of the calcified intima of the aorta away from its outer wall, a finding in a small percentage of cases of dissection of blood in the aortic media; the expression "displaced intimal calcification" is preferred to the listed term. See: aortic dissection. (05 Mar 2000) |
| Calkins' sign | <clinical sign> The change of shape of the uterus from discoid to ovoid, indicating placental separation from the uterine wall. (05 Mar 2000) |
| Cantelli's sign | <clinical sign> Reflex movement of the eyes in the opposite direction to that which the head is moved, e.g., the eyes being lowered as the head is raised, and the reverse (Cantelli's sign); an indication of functional integrity of the brainstem tegmental pathways and cranial nerves involved in eye movement. Synonym: vestibular ocular reflex. (05 Mar 2000) |
| carman meniscus sign | <radiology> Saemicircular (meniscoid) configuration of gastric ulcer seen in profile with compression, suggestive of malignancy see: gastric ulcers (12 Dec 1998) |
| Carman's sign | In gastric radiology, the appearance of a contrast-filled malignant ulcer, which does not extend beyond the line of the gastric wall as a benign ulcer would; also has a thick overhanging rim of tumour tissue. (05 Mar 2000) |
| Carnett's sign | <clinical sign> Disappearance of abdominal tenderness to palpation when the anterior abdominal muscles are contracted, indicating pain of intra-abdominal origin; its persistence suggests a source in the abdominal wall, which is also indicated when tenderness is caused by gently pinching a fold of skin and fat between the thumb and forefinger. (05 Mar 2000) |
| Macewen's sign | <clinical sign> Percussion of the skull gives a cracked-pot sound in cases of hydrocephalus. Synonym: Macewen's symptom. (05 Mar 2000) |