CAUSES :
1. MONONEUROPATHY
- DIRECT TRAUMA, COMPRESSION OR ENTRAPMENT. NERVES USUALLY INVOLVED ARE
SUPRASCAPULAR , LONG THORACIC, AXILLARY, RADIAL, POSTERIOR INTEROSSEOUS BRANCH, ULNER, MEDIAN, ANTERIOR INTEROSSEOUS BRANCH, FEMORAL, LATERAL FEMORAL CUTANEOUS BRANCH, OBTURATOR, SCIATIC, POSTERIOR TIBIAL & PERONEAL
- IDIOPATHIC
- SERUM OR POST VACCINAL
- HERPES ZOSTER
- NEOPLASTIC
- LEPROSY
- RADIATION
- DIPHTHERIC
2. POLYNEUROPATHY
A. ACUTE ONSET
- PORPHYRIA
- MASSIVE INTOXICATION BY ARSENIC, INHALANTS
- GUILLAIN-BARRE SYNDROME
- DIPHTHERIC
B. SUBACUTE ONSET
- DIABETES MALLITUS
- UREMIA
- HERPES ZOSTER
- LEPROUS NEURITIS
- POLYNEURITIS CRANIALIS
- PORPHYRIA ( RARE )
- HYPOGLYCEMIA ( RARE )
- VIT DEFICIENCY EXCLUDING B12
- CRITICAL ILLNESS LIKE SEPSIS
- CHR LIVER DISEASE
- PRIMARY BILIARY CIRRHOSIS ( RARE )
- PRIMARY SYSTEMIC AMYLOIDOSIS( RARE)
- HYPOTHYROIDISM ( RARE )
- CHR OBSTRUCTIVE LUNG DISEASE( RARE)
- ACROMEGALY ( RARE )
- MALABSORPTION LIKE SPRUE, CELIAC DISEASE
- CARCINOMA ( RARE )
- HIV DISEASE
- LYME DISEASE
- LYMPHOMA INCLUDING HODGKINS
- POLYCYTHEMIA VERA ( RARE )
- MULTIPLE MYELOMA
- MONOCLONAL GAMMOPATHY OF UNDETERMINED SIGNIFICANCE IGA , IGG, IGM
- CRYOGLOBULINEMIA ( RARE )
- DRUGS OR TOXINS INDUCED LIKE
AMIODARONE, AUROTHIOGLUCOSE, CISPLATIN, DAPSONE, DISULFIRAM, HYDRALAZINE, ISONIAZID, METRONIDAZOLE, MISONIDAZOLE, NITROFURANTOIN, ANTIRETROVIRAL AGENTS, PHENYTOIN, PYRIDOXINE, SURAMIN, TAXOL, VINCRISTINE, ACRYLAMIDE, ARSENIC, DIPHTHERIA TOXIN, INORGANIC LEAD, ORGANOPHOSPHATES, THALLIUM
- ARTERITIC
- PARAPROTEINEMIA
OTHER TESTS :
* NERVE BIOPSY