RT Journal Article SR Electronic T1 Differentiating lower motor neuron syndromes JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 474 OP 483 DO 10.1136/jnnp-2016-313526 VO 88 IS 6 A1 Nidhi Garg A1 Susanna B Park A1 Steve Vucic A1 Con Yiannikas A1 Judy Spies A1 James Howells A1 William Huynh A1 José M Matamala A1 Arun V Krishnan A1 John D Pollard A1 David R Cornblath A1 Mary M Reilly A1 Matthew C Kiernan YR 2017 UL http://jnnp.bmj.com/content/88/6/474.abstract AB Lower motor neuron (LMN) syndromes typically present with muscle wasting and weakness and may arise from pathology affecting the distal motor nerve up to the level of the anterior horn cell. A variety of hereditary causes are recognised, including spinal muscular atrophy, distal hereditary motor neuropathy and LMN variants of familial motor neuron disease. Recent genetic advances have resulted in the identification of a variety of disease-causing mutations. Immune-mediated disorders, including multifocal motor neuropathy and variants of chronic inflammatory demyelinating polyneuropathy, account for a proportion of LMN presentations and are important to recognise, as effective treatments are available. The present review will outline the spectrum of LMN syndromes that may develop in adulthood and provide a framework for the clinician assessing a patient presenting with predominantly LMN features.