PT - JOURNAL ARTICLE AU - Lascelles, R. G. AU - Mohr, P. D. AU - Peart, I. TI - Unilateral cataplexy associated with systemic lupus erythematosus AID - 10.1136/jnnp.39.10.1023 DP - 1976 Oct 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 1023--1026 VI - 39 IP - 10 4099 - http://jnnp.bmj.com/content/39/10/1023.short 4100 - http://jnnp.bmj.com/content/39/10/1023.full SO - J Neurol Neurosurg Psychiatry1976 Oct 01; 39 AB - A patient with systemic lupus erythematosus (SLE) developed attacks of unilateral cataplexy precipitated by laughter. Unilateral cataplexy has not been described previously in detail and its association with SLE is unique. The clinical details, investigations, and diagnostic criteria are discussed and a causal relationship between cataplexy and SLE is suggested.