Dandy's point

In neurosurgery, Dandy's point is a common entry point for occipital burr hole. Originally described by Walter Dandy in 1918 as a way to perform ventriculography via occipital approach.{{Cite journal|last=Dandy|first=W. E.|title=Ventriculography Following the Injection of Air into the Cerebral Ventricles|date=July 1918|journal=Annals of Surgery|volume=68|issue=1|pages=5–11|doi=10.1097/00000658-191807000-00002|issn=0003-4932|pmc=1426769|pmid=17863946}}{{Cite journal|last1=Morone|first1=Peter J|last2=Dewan|first2=Michael C|last3=Zuckerman|first3=Scott L|last4=Tubbs|first4=R Shane|last5=Singer|first5=Robert J|date=2020-05-01|title=Craniometrics and Ventricular Access: A Review of Kocher's, Kaufman's, Paine's, Menovksy's, Tubbs', Keen's, Frazier's, Dandy's, and Sanchez's Points|url=https://doi.org/10.1093/ons/opz194|journal=Operative Neurosurgery|volume=18|issue=5|pages=461–469|doi=10.1093/ons/opz194|pmid=31420653|issn=2332-4252|url-access=subscription}} It is located {{Convert|2|cm|in}} lateral to the midline and {{Convert|3|cm|in}} above the inion. The catheter tip is directed toward a point 2 cm above the glabella and passed to a distance of 4 to 5 cm or until CSF is encountered.{{cite book |title=Youmans and Winn Neurological Surgery |date=2017 |publisher=Elsevier |pages=1723–1728 |edition=7}}