| CFS | cancer family syndrome; Chiari-Frommel syndrome; chronic fatigue syndrome; craniofacial stenosis; cr... |
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| FNF | false-negative fraction; femoral neck fracture |
| Fr | fracture; francium; franklin [unit charge]; French; frequency or frequent |
| frac | fracture |
| fract | fracture |
| FN III | fibronectin type III |
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| HTLV-III/LAV | human T cell lymphotropic virus type III/lymphadenopathy associated virus |
| HTLV-III/LAV | human T lymphotrophic virus type III/lymphadenopathy-associated virus |
| PDE III | phosphodiesterase III |
| URO-III-S | uroporphyrinogen III synthase |
| uroporphyrin-III C-methyltransferase | <enzyme> From pseudomonas denitrificans; enzyme of the cobalamin biosynthetic pathway which catalyses the c methylation of uroporphyrinogen III; also catalyses both nad+ dependent oxidation of precorrin-2 to sirohydrochlorin and insertion of iron into it to produce siroheme; cysg gene is from E coli; product of coba gene of pseudomonas; do not confuse with coba gene product of salmonella typhimurium which yields ATP-corrinoid adenosyltransferase Registry number: EC 2.1.1.107 Synonym: uroiii methyltransferase, uroporphyrinogen III methylase, sumt methyltransferase, s-adenosylmethionine-uroporphyrinogen III methyltransferase, cysg gene product, siroheme synthase, coba gene product, propionibacterium (26 Jun 1999) |
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| uroporphyrinogen-III synthase | <enzyme> An enzyme that catalyses the cyclization of hydroxymethylbilane to yield uroporphyrinogen III and water. Chemical name: Hydroxymethylbilane hydro-lyase (cyclizing) Registry number: EC 4.2.1.75 (12 Dec 1998) |
| forms of DNA i, II and III | Refers to circular DNA removed from viruses and as plasmids. Form I is the DNA in its normal, supercoiled form. Form II is the DNA after one of the two strands has been nicked (cut apart), and is circular. Form III is the DNA after both strands have been broken, and is linear. (09 Oct 1997) |
| apophysial fracture | Separation of apophysis from bone. (05 Mar 2000) |
| articular fracture | A fracture involving the joint surface of a bone. (05 Mar 2000) |
| atlas fracture | <radiology> Incidence: 4% of cervical spine injuries, site: posterior arch, anterior arch, massa lateralis, Jefferson fracture associated with: fractures of C7 (25%), fractures of C2 pedicle (15%), extraspinal fractures (58%) (12 Dec 1998) |
| avulsion fracture | A fracture that occurs when a joint capsule, ligament, or muscle insertion of origin is pulled from the bone as a result of a sprain dislocation or strong contracture of the muscle against resistance; as the soft tissue is pulled away from the bone, a fragment or fragments of the bone may come away with it. (05 Mar 2000) |
| axis fracture | <radiology> Incidence: 6% of cervical spine injuries, associated with atlas fractures in 8%, hyperflexion injury: odontoid fracture, type I avulsion of tip of odontoid (5-8%) difficult to detect, type II fracture through base of dens (54-67%) complication: nonunion, type III subdental injury (30-33%) prognosis: good, Differential diagnosis: os odontoideum, ossiculum terminale, hypoplasia/aplasia of dens, hyperextension injury: hangman's fracture (12 Dec 1998) |
| barton fracture | <radiology> Intra-articular fracture of distal radius, dorsal displacement of separated fragment, due to fall on outstretched hand see: wrist fractures (12 Dec 1998) |
| Barton's fracture | Fracture of the distal radius with dislocation of the radiocarpal joint. (05 Mar 2000) |
| basal skull fracture | <orthopaedics> A fracture involving the base of the cranium. This fracture is often difficult to detect clinically. Findings may include raccoon eyes, Battle's sign, haemotympanum and cerebrospinal fluid rhinorrhoea. Plain skull X-ray will often not reveal the basal skull fracture, making a CT scan or MRI the most reliable diagnostic investigation. (15 Nov 1997) |
| bending fracture | <orthopaedics, radiology> An injury in which a long bone or bones, usually the radius and ulna, are bent due to multiple microfractures, none of which can be seen by X-ray imaging. (14 Aug 2000) |
| bennett fracture | <radiology> Mechanism: forced abduction of thumb, findings: intraarticular fracture/dislocation of the base of the 1st metacarpal at the ulnar aspect, small fragment of metacarpal continues to articulate with the trapezium, lateral retraction of metacarpal shaft by abductor pollicis longus, difficult to keep in anatomical alignment, complication: pseudoarthrosis, better prognosis than Rolando fracture see: thumb fractures (12 Dec 1998) |
| Bennett's fracture | <orthopaedics> A fracture-dislocation of the first metacarpal bone (thumb) at the carpal metacarpal joint. (06 Aug 1998) |
| birth fracture | Fracture occurring during the trauma of delivery or, occasionally, before delivery in infants with osteogenesis imperfecta. (05 Mar 2000) |