Neurosurg Rev (2011) 34:249–252 DOI 10.1007/s10143-011-0337-2 EDITORIAL Keiji Sano—memories of meetings Rudolf Fahlbusch Published online: 14 June 2011 # Springer-V erlag 2011 Professor Keiji Sano passed away at the age of 90 on 6 January 2011. We all miss this unique and outstanding personality, this mentor, and friend over decades to many neurosurgeons in Japan and around the world. Profess