| HSAS | hydrocephalus due to stenosis of aqueduct of Sylvius; hypertrophic subaortic stenosis |
|---|---|
| DMD | disease-modifying drug; Doctor of Dental Medicine; Duchenne muscular dystrophy; dystonia musculorum ... |
| DRD | dihydroxyphenylalanine-responsive dystonia; dorsal root dilator |
| ITD | idiopathic torsion dystonia; intensely transfused dialysis; iodothyronine deiodinase |
| NCD | National Commission on Diabetes; National Council on Drugs; neurocirculatory dystonia; nitrogen clea... |
| dystonia, oromandibular | Oromandibular dystonia affects the muscles of the jaw, lips, and tongue. The jaw may be pulled either open or shut, and speech and swallowing can be difficult. (12 Dec 1998) |
|---|---|
| dystonia, segawa's | An important variant of dopa-responsive dystonia (DRD), a condition successfully treated with drugs. Typically, DRD begins in childhood or adolescence with progressive difficulty in walking and, in some cases, spasticity. In Segawa's dystonia, the symptoms fluctuate during the day from relative mobility in the morning to increasingly worse disability in the afternoon and evening as well as after exercise. (12 Dec 1998) |
| dystonia, torsion | A form of dystonia known as early-onset torsion dystonia (also called idiopathic or generalised torsion dystonia) begins in childhood around the age of 12. Symptoms typically start in one part of the body, usually in an arm or leg, and eventually spread to the rest of the body within about 5 years. Early-onset torsion dystonia is not fatal, but it can be severely debilitating. most children with the disorder are unable to perform the simplest of motor tasks and are confined to a wheelchair by the time they reach adulthood. (12 Dec 1998) |
| dystonia, writer's cramp | A dystonia that affects the muscles of the hand and sometimes the forearm and only occurs during handwriting. Similar focal dystonias have also been called typist's cramp, pianist's cramp, musician's cramp, and golfer's cramp. (12 Dec 1998) |
| oromandibular dystonia | Oro- refers to the mouth and mandibular refers to the lower jaw. Oromandibular dystonia affects the muscles of the jaw, lips, and tongue. The jaw may be pulled either open or shut, and speech and swallowing can be difficult. (12 Dec 1998) |
| torsion dystonia | A form of dystonia known as early-onset torsion dystonia (also called idiopathic or generalised torsion dystonia) that begins in childhood around the age of 12. Symptoms typically start in one part of the body, usually in an arm or leg, and eventually spread to the rest of the body within about 5 years. Early-onset torsion dystonia is not fatal, but it can be severely debilitating. most children with the disorder are unable to perform the simplest of motor tasks and are confined to a wheelchair by the time they reach adulthood. (12 Dec 1998) |
| anterior focal point | The point where parallel rays from the retina are focused. (05 Mar 2000) |
| back focal length | <microscopy> As measured on the principal axis, from the second lens vertex to the back focal point of the lens. It is not the equivalent of the focal length. (05 Aug 1998) |
| back focal plane | <microscopy> The plane, normal to the lens axis, situated at the back focus of a lens. (05 Aug 1998) |
| Berger's focal glomerulonephritis | Glomerulonephritis affecting a small proportion of renal glomeruli which commonly presents with haematuria and may be associated with acute upper respiratory infection in young males, not usually due to streptococci; associated with IgA deposits in the glomerular mesangium and may also be associated with systemic disease, as in Henoch-Schonlein purpura. Synonym: Berger's disease, Berger's focal glomerulonephritis, focal nephritis, IgA nephropathy. (05 Mar 2000) |
| glomerulosclerosis, focal | Glomerular disease characterised by focal and segmental areas of glomerular sclerosis, usually commencing in the juxtamedullary glomeruli and gradually spreading to involve other parts of the kidney, with eventual kidney failure. (12 Dec 1998) |
| chronic focal sclerosing osteomyelitis | A reaction of bone to a mild bacterial infection, often the result of a carious tooth, in persons with a high degree of tissue resistance; results in a localised radio-opacity. Synonym: focal condensing osteitis. (05 Mar 2000) |
| plane, focal | <microscopy> A plane through the focal point perpendicular to the principle axis of a lens or mirror. (05 Aug 1998) |
| positive focal length | <microscopy> Any lens which converges parallel rays to a focus at the back of the lens is a positive lens and has a positive focal length. The focal length is measured from the second principal point of the lens to the point on the lens axis where the rays from an infinitely distant point are brought to focus. See: negative focal length. (05 Aug 1998) |
| posterior focal point | The point of a compound optical system where parallel rays entering the system are focused. (05 Mar 2000) |