| BAVCP | bilateral abductor vocal cord paralysis |
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| BBBB | bilateral bundle-branch block |
| BBS | Barolet-Biedl syndrome; bashful bladder syndrome; benign breast syndrome; bilateral breath sounds; b... |
| BCBR | bilateral carotid body resection |
| BCLP | bilateral cleft of lip and palate |
| small canal of chorda tympani | A canal leading from the facial canal to the tympanic cavity through which the chorda tympani nerve enters this cavity. Synonym: canaliculus chordae tympani, iter chordae posterius, small canal of chorda tympani. (05 Mar 2000) |
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| small cardiac vein | <anatomy, vein> An inconstant vessel, accompanying the right coronary artery in the coronary sulcus, from the right margin of the right ventricle, and emptying into the coronary sinus or the middle cardiac vein. Synonym: vena cordis parva. (05 Mar 2000) |
| small cell carcinoma | <oncology, tumour> Common malignant neoplasm of bronchus. Cells of the tumour have endocrine like characteristics and may secrete one or more of a wide range of hormones, especially regulatory peptides like bombesin. (18 Nov 1997) |
| small cell lung cancer | A type of lung cancer in which the cells are small and round. Also called oat cell lung cancer. (12 Dec 1998) |
| small cleaved cell | A lymphoid cell of follicular centre cell origin that has an irregularly shaped nucleus with clumped chromatin, absent nucleoli, and one or more clefts in the nuclear membrane. (05 Mar 2000) |
| small deep petrosal nerve | <anatomy, nerve> One of two sympathetic branches from the internal carotid plexus to the tympanic plexus. Synonym: nervus caroticotympanicus, small deep petrosal nerve. (05 Mar 2000) |
| small for gestational age | <obstetrics, paediatrics> A weight classification of newborns associated with poor health outcomes, the weight falling below the 10th percentile on the intrauterine growth curve for the infant's calculated gestational age. (27 Sep 1997) |
| small gallbladder | <radiology> Chronic cholecystitis, cystic fibrosis (seen in 30-50% of CF patients), congenital anomaly (multiseptate, hypoplastic) Cf: large gall bladder (12 Dec 1998) |
| small increment sensitivity index | The sounding of a tone 20 dB above threshold, followed by a series of 200-msec tones 1 dB louder; perception of these is indicative of cochlear damage. Synonym: small increment sensitivity index test. (05 Mar 2000) |
| small increment sensitivity index test | The sounding of a tone 20 dB above threshold, followed by a series of 200-msec tones 1 dB louder; perception of these is indicative of cochlear damage. Synonym: small increment sensitivity index test. (05 Mar 2000) |
| small interarch distance | A small distance between the maxillary and mandibular arches. Synonym: close bite. (05 Mar 2000) |
| small intestine | <anatomy, gastroenterology> The small intestine is composed of three sections: duodenum, jejunum and ileum. All are involved in the absorption of nutrients. The total length of the small intestine is approximately 22 feet. (27 Sep 1997) |
| small lymphocytic lymphoma | <tumour> Essentially the same disease as chronic lymphocytic leukaemia, except that lymphocytes are not increased in the peripheral blood; lymph nodes are enlarged and other lymphoid tissue or bone marrow is infiltrated by small lymphocytes. Synonym: small lymphocytic lymphoma. (05 Mar 2000) |
| small nuclear RNA | <molecular biology> A nucleic acid found in all living cells. Plays a role in transferring information from DNA to the protein-forming system of the cell. (16 Dec 1997) |
| small pancreas | A portion of the head of the pancreas that hooks around posterior to the superior mesenteric vessels, sometimes into the "nutcracker" formed by the superior mesenteric artery and abdominal aorta. Synonym: processus uncinatus pancreatis, lesser pancreas, pancreas minus, small pancreas, uncinate pancreas, unciform pancreas, Willis' pancreas, Winslow's pancreas. (05 Mar 2000) |