Thyrotoxicosis presents as periodic paralysis

38 yr old male presented with weakness of both lower limbs of one day duration. No bladder or bowel symptoms, sensory symptoms. Neurological examination showed lower limb power of three out of five bilaterally and hypotonia of Lower limbs. Reflexes were normal, plantar flexor and no sensory level. MRI spine -normal. Nerve conduction study-Normal. Lab evaluation showed thyrotoxicosis with hypokalemia. Patient improved dramatically with treatment of the cause .
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Tags: Neurology