Patients I’ve learnt from. Ischemic stroke. A case of sequential limb weakness diagnosed as recurrent ischemic stroke. Peripheral neuropathy. A case of chronic, progressive distal limb numbness and unsteady gait diagnosed as demyelinating polyneuropathy. A case of chronic, progressive distal weakness, numbness, and muscle wasting diagnosed as demyelinating polyneuropathy. Cerebellar ataxia. A case of subacute, rapidly progressive cognitive impairment with asymmetrical bilateral cerebellar syndrome. Myasthenia gravis. A case of subacute, variable bilateral ptosis and complex ophthlamoplegia diagnosed as ocular-onset myasthenia gravis. CNS demyelinating disease. A case of chronic, relapsing-remitting asymmetrical tetraplegia, paresthesia, and ataxia diagnosed as seronegative CNS demyelinating disease.