Download or read book Chiari Malformation, An Issue of Neurosurgery Clinics of North America written by Jeffrey Leonard and published by Elsevier Health Sciences. This book was released on 2016-01-07 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue will cover chiari malformation in both children and adult populations. In the past, it was estimated that the condition occurs in about one in every 1,000 births. However, the increased use of diagnostic imaging has shown that CM may be much more common. Complicating this estimation is the fact that some children who are born with the condition may not show symptoms until adolescence or adulthood, if at all. CMs occur more often in women than in men and Type II malformations are more prevalent in certain groups, including people of Celtic descent.