polyneuritis is caused by what the? B> p>
pathology of this disease is mainly segmental demyelination of peripheral nerve or axonal degeneration, or both, caused by many reasons, as described below: p>
(a) acute inflammatory demyelinating neuropathy is a group may be caused by infection or serum injection, the vaccine-induced autoimmune disease. P>
(b) the metabolic and endocrine disorders diabetes, uremia, porphyria disease, amyloidosis, gout, four thyroid dysfunction, acromegaly, yellow fibromatosis, hemophilia, a variety of causes cachexia, burns and so on. P>
(3) Nutrition disorder beriberi, pellagra, vitamin B12 deficiency, chronic alcoholism, pregnancy, chronic gastrointestinal disease and surgery and so on. P>
(d) chemical factors p>
1. furan drugs drugs, isoniazid, phenytoin, sulfonamides, vincristine, chloroquine, ethambutol, cytarabine and so on. P>
2. chemicals, carbon monoxide, carbon disulfide, carbon tetrachloride, benzene and its derivatives (aniline, nitrobenzene, etc.), methanol, methyl bromide, n-hexane, acetone, chloroform, allyl chloride, chloroprene alcohol , trichlorethylene, organochlorine pesticides, organophosphorus pesticides (trichlorfon, dichlorvos, 1605,1059), etc. P>
3. heavy metals arsenic, lead, mercury, antimony, thallium, etc. P>
(e) infectious diseases p>
1. direct infection of peripheral nerve, such as leprosy, herpes zoster. P>
2. associated with or secondary to a variety of acute and chronic infections such as influenza, measles, chickenpox, mumps, scarlet fever, infectious mononucleosis syndrome, leptospirosis, and so on. P>
3. bacterial toxin secreted by peripheral nerves have a special affinity, such as diphtheria, tetanus, dysentery and so on. P>
(f) connective tissue diseases such as lupus erythematosus, nodular nodosa, scleroderma, rheumatoid arthritis and so on. P>
(g) such as hereditary ataxia hereditary peripheral neuritis (Refsum disease), progressive hypertrophic polyneuritis and so on. P>
(h) other reasons such as multiple myeloma, lymphoma, polycythemia vera, cancer, abnormal hypergammaglobulinemia and so on. P>
(nine) of unknown cause chronic or recurrent polyneuritis. P> p>