| OCA | oculocutaneous albinism; olivopontocerebellar atrophy; oral contraceptive agent |
|---|---|
| OPCA | olivopontocerebellar atrophy |
| POA | pancreatic oncofetal antigen; phalangeal osteoarthritis; preoptic area; primary optic atrophy |
| PPCRA | pigmented paravenous chorioretinal atrophy |
| STVA | subtotal villose atrophy |
| striated muscular sphincter | A sphincter made up of striated musculature. Synonym: striated muscular sphincter. Origin: rhabdo-+ G. Sphinkter, sphincter (05 Mar 2000) |
|---|---|
| Sudeck's atrophy | Atrophy of bones, commonly of the carpal or tarsal bones, following a slight injury such as a sprain. See: causalgia, reflex sympathetic dystrophy. Synonym: acute reflex bone atrophy, posttraumatic osteoporosis, Sudeck's syndrome. Origin: L. English sweat (05 Mar 2000) |
| dentatorubral cerebellar atrophy with polymyoclonus | A familial disorder beginning in late childhood, characterised by progressive cerebellar ataxia, action myoclonus and preserved intellect. Probably due to multiple causes, mitochondrial abnormalities being one. Synonym: dentatorubral cerebellar atrophy with polymyoclonus. (05 Mar 2000) |
| diffuse brain atrophy | A form of dementia caused by destruction (atrophy) of the frontal lobes of the brain. This condition leads to the progressive deterioration of mental functioning. Incidence: 9 in 10,000 people in the general population. (27 Sep 1997) |
| disuse atrophy | Muscle wasting caused by immobilization, such as casting. (05 Mar 2000) |
| Duchenne muscular dystrophy | A specific form of muscular dystrophy that is inherited as a sex-linked recessive trait and thus confined to young males and to females with Turner's syndrome. One third of all cases are estimated to be new mutational events. See: dystrophin. It is characterised by degeneration and necrosis of skeletal muscle fibres, that are replaced by fat and fibrous tissue. Symptoms include muscle weakness and in some forms, the appearance of muscle enlargement (pseudo-hypertrophy). Advanced cases can include weakness of the respiratory muscles (compromising breathing) and cardiomyopathy. Inheritance: sex-linked recessive. Incidence: 1 in 4000 male births. (11 Nov 1997) |
| olivopontocerebellar atrophy | A collection of diseases with atrophy of the cerebellum, pons, and inferior olives described in 1900 by dejerine and thomas. Signs and symptoms include ataxia of trunk and limbs, dysarthria, intention tremor, followed by generalised rigidity and dementia. (12 Dec 1998) |
| optic atrophy | Atrophy of the optic disk resulting from degeneration of the nerve fibres of the optic nerve and optic tract. (12 Dec 1998) |
| optic atrophy, hereditary | An inherited disorder in which optic atrophy is associated with muscle weakness, peroneal muscular atrophy and, in some patients, lancinating pains. In these patients the peripheral sensory neurons are probably affected. (12 Dec 1998) |
| electro-muscular | <physiology> Pertaining the reaction (contraction) of the muscles under electricity, or their sensibility to it. Source: Websters Dictionary (01 Mar 1998) |
| Emery-Dreifuss muscular dystrophy | A generally benign type of muscular dystrophy, with onset in childhood or early adulthood. Weakness begins with the pectoral girdle and proximal upper extremity muscles and spreads to the pelvic girdle and distal lower extremity muscles. Contractures of the elbow, flexors, neck flexors, and calf muscles often occur; muscle pseudohypertrophy and mental retardation do not occur. A cardiomyopathy is common. An X-linked inherited disorder, nonallelic to Duchenne's muscular dystrophy. (05 Mar 2000) |
| traction atrophy | Bands of thin wrinkled skin, initially red but becoming purple and white, which occur commonly on the abdomen, buttocks, and thighs at puberty and/or during and following pregnancy, and result from atrophy of the dermis and overextension of the skin; also associated with ascites and Cushing's syndrome. Synonym: atrophoderma striatum, lineae albicantes, lineae atrophicae, linear atrophy, stretch marks, stria, striae atrophicae, striate atrophy of skin, traction atrophy, vergeture. (05 Mar 2000) |
| transneuronal atrophy | An atrophy of nerve cells following damage to the axons that make synaptic connection with them; noted especially in the lateral geniculate body. Synonym: transneuronal atrophy, transsynaptic chromatolysis. (05 Mar 2000) |
| Erb atrophy | A form of progressive muscular atrophy in which the disease begins in the muscle and not in the spinal centres. Synonym: Erb atrophy, idiopathic muscular atrophy. (05 Mar 2000) |
| trophoneurotic atrophy | Abnormalities of the skin, hair, nails, subcutaneous tissues and bone, caused by peripheral nerve lesions. Synonym: neuritic atrophy, neurogenic atrophy, neurotrophic atrophy, trophic changes. (05 Mar 2000) |