“Mount Fuji Sign.” While not classic for the typical peaked pneumocephalus, note the compressive nature of the air collection at the surgical site. Source: Common Postoperative Complications in Neurosurgery, Principles and Practice of Hospital Medicine, 2e Citation: McKean SC, Ross JJ, Dressler DD, Scheurer DB. Principles and Practice of Hospital Medicine, 2e; 2017 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/1872/mckeanhm2_ch64_f001.png&sec=146974885&BookID=1872&ChapterSecID=146974877&imagename= Accessed: November 02, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved