162 Copyright © 2010 Journal of Korean Neurotraumatology Society

This report details a case of a 56-year-old woman who presented with a herniated lumbar disc at L4-5 with congenital spon-dylolisthesis (grade II) and developed remote cerebellar hemorrhage following an iatrogenic acute reduction in cerebro-spinal fluid (CSF) pressure during spinal interbody fusion. Possible mechanisms are discussed: however, pathological events leading to this complication are unclear. Intracranial hemorrhage (ICH) must be considered in patient presenting with unexplained neurological deterioration not attributable to the spinal surgery, especially when the dura has been opened fol-lowed by significant CSF loss. (J Kor Neurotraumatol Soc 2010;6:162-164) KEY WORDS: Cerebellar hemorrhage ㆍSpinal surgery ㆍCerebrospinal fluid