Hellow guys, Welcome to Utubetrends, and you are watching Retrosigmoid approach for resection of an extraventricular choroid plexus papilloma. and this vIdeo is uploaded by American Association of Neurological Surgeons at 2014-01-16T07:31:57-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.