syndrome. It affects patients of all ages, often following a recent viral illness, also after surgery or trauma. Here the immune system targets peripheral nerve myelin which was possibly modified by or antigenically resembles the virus encountered weeks earlier. The typical clinical picture is that of an ascending, areflexic paralysis, where the lower limbs are affected first. Within only hours to days, the weakness may spread to involve the trunk, upper limbs, respiratory muscles, face, bulbar, and even extraocular muscles. Although patients may complain of tingling or numbness, signs of sensory impairment are minimal. The progression of weakness plateaus after 3-4 weeks time. observation in an intensive care u including hospitalization, These patients require ventilation may be needed. An EMG test usually shows evidence of since mechanical ation in proximal and distal segments of various nerves. An asymmetrical elevated cerebrospinal fluid (CSF) protein may be detected with few if any white blood and signs of infection. Despite even severe weakness the vast majority of patients recover fully, while a minority survives with some residual neurological defici Recovery may be hastened by treatment with plasmapheresis, where physical removal of or with antibodies lessens the autoimmune attack on peripheral nerve infusion of intravenous gamma globulin, which provides high doses of antibodies which Meet counteract, block or down-regulate the autoimmune process Yneuropathies are chronic and develop over months to years. One of the