[Case of neuralgic amyotrophy with anti GT1a antibody].

[neuralgic amyotrophy]

A 48 -year -old-man had intense pain in the neck and muscle weakness in the left upper limb after he presented low grade fever and appetite loss for a week . Several days later , he developed intense pain and severe muscle weakness in bilateral upper limbs . Laboratory examination showed elevated liver enzyme levels . His muscle weakness was severe in the right upper limb and was moderate in the left upper limb . Deep tendon reflexes were decreased in the bilateral upper limbs . CSF showed albuminocytologic dissiciation . A diagnosis of neuralgic amyotrophy was made . His liver dysfunction improved gradually . IgM and IgG anti-GT 1 a antibodies were positive . Future studies are required to elucidate whether anti-GT 1 a antibody is associated with the primary pathophysiology of neuralgic amyotrophy .