| ischemic optic neuropathy | Optic nerve neuropathy secondary to hypoperfusion of the low pressure posterior ciliary arteries supplying the optic nerve head (nonarteritic) or to temporal arteritis (arteritic). (05 Mar 2000) |
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| isoniazid neuropathy | An axonal form of neuropathy seen in some patients treated with isoniazid. (05 Mar 2000) |
| onion bulb neuropathy | Designation for any of several demyelinating polyneuropathies in which the nerves are enlarged, due to onion bulb formation-whorls of overlapping Schwann cell processes encircling bare medullated axons, e.g., progressive hypertrophic polyneuropathy. See: hypertrophic interstitial neuropathy. (05 Mar 2000) |
| optic neuropathy, ischemic | A severely blinding disease resulting from loss of the arterial blood supply to the optic nerve as a result of occlusive disorders of the nutrient arteries. Optic neuropathy is divided into anterior, which causes a pale oedema of the optic disk, and posterior, in which the optic disk is not swollen and the abnormality occurs between the globe and the optic chiasm. Ischemic anterior optic neuropathy usually causes a loss of vision that may be sudden or occur over several days; ischemic posterior optic neuropathy is uncommon and the diagnosis depends largely upon exclusion of other causes, chiefly stroke and brain tumour. (12 Dec 1998) |
| entrapment neuropathy | A focal nerve lesion produced by constriction or mechanical distortion of the nerve, within a fibrous or fibro-osseous tunnel, or by a fibrous band; with these lesions, stretching and angulation of the nerve may be as important a source of injury as compression; entrapment neuropathies tend to occur at particular sites in the body. (05 Mar 2000) |
| familial amyloid neuropathy | <neurology> A disorder in which various peripheral nerves are infiltrated with amyloid and their functions disturbed, an abnormal prealbumin is also formed and is present in the blood; characteristically, it begins during mid-life and is found largely in persons of Portuguese descent. Other rare clinical types occur. Inheritance: autosomal dominant. Synonym: familial amyloidosis, hereditary amyloidosis. (05 Mar 2000) |
| lead neuropathy | A peripheral neuropathy reportedly seen in chronic lead intoxication; reputedly characterised by wrist-drop, but no convincing modern reports of this are available. (05 Mar 2000) |
| leprous neuropathy | A slowly developing granulomatous neuropathy, commonly seen in leprosy, caused by Mycobacterium leprae. (05 Mar 2000) |
| acute brachial radiculitis | A neurological disorder, of unknown cause, characterised by the sudden onset of severe pain, usually about the shoulder and often beginning at night, soon followed by weakness and wasting of various forequarter muscles, particularly shoulder girdle muscles; both sporadic and familial in occurrence with the former much more common; often preceded by some antecedent event, such as an upper respiratory infection, hospitalization, vaccination, or non-specific trauma; usually attributed to a brachial plexus lesion, because the nerve fibres involed are most often derived from the upper trunk, but actually multiple proximal mononeuropathies. Synonym: acute brachial radiculitis, brachial plexitis, brachial plexus neuropathy, Parsonage-Turner syndrome, shoulder-girdle syndrome. (05 Mar 2000) |
| anterior brachial region | The anterior region of the arm. (05 Mar 2000) |
| artery, brachial | The artery that runs from the shoulder down to the elbow. (12 Dec 1998) |
| brachial | Or, [L. Brachialis (bracch-), from bracchium (bracch-) arm: cf. F. Brachial. 1. <anatomy> Pertaining or belonging to the arm; as, the brachial artery; the brachial nerve. 2. Of the nature of an arm; resembling an arm. Source: Websters Dictionary (01 Mar 1998) |
| brachial anaesthesia | Anaesthetization of an upper extremity by injection of local anaesthetic solution about the brachial plexus. (05 Mar 2000) |
| brachial artery | <anatomy, artery> The artery that runs from the shoulder down to the elbow. (12 Dec 1998) |
| brachial birth palsy | Paralysis of the infant's arm due to injury received at birth usually resulting from a shoulder dystocia; three types are recognised: 1) whole arm; 2) upper arm (Erb's p.); 3) forearm (Klumpke's paralysis). (05 Mar 2000) |