[C from: Markowitz SK, Ziter FHM: The lateral chest film and pneumoperitoneum. Ann Emerg Med 1986;15:425–427, with permission.] Source: Chapter II-3. Pneumoperitoneum, Emergency Radiology: Case Studies Citation: Schwartz DT. Emergency Radiology: Case Studies; 2008 Available at: http://accessemergencymedicine.mhmedical.com/DownloadImage.aspx?image=/data/Books/schw1/schw1_c019f009d.jpg&sec=41826939&BookID=434&ChapterSecID=41825429&imagename= Accessed: October 10, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved