Pandian, JDMathuranath, PSSuresh, PARadhakrishnan, K2017-03-102017-03-10199846 ,3;232-234https://dspace.sctimst.ac.in/handle/123456789/10099An adult male with thymomatous myasthenia gravis (MG) and a motor neuron syndrome simulating amyotrophic lateral sclerosis is reported. After thymectomy and corticosteroid therapy, the MG remitted. During 4 years of follow-up, the lower motor neuron signs in the upper limbs and upper motor neuron signs in the lower limbs remained unchanged. Literature concerning paraneoplastic neurological syndromes associated with thymoma has been reviewed.Neurosciences & Neurology