Imaging Case of the Week 207 Posted on May 30, 2016 by Prathibha The frontal chest x-ray is from a 23 year old with shortness of breath after inhaling a chemical. What radiological sign can be seen?With thanks to Dr. Basil Muharb for the image. Answer will be posted on 01/06/2016. Share this:PrintEmailTwitterFacebookMoreRedditLinkedInPinterest