Adonis Manzella MD, Presenter: Nothing to Disclose

Paulo De Queiroz Borba Filho MD, Abstract Co-Author: Nothing to Disclose

Edson Marchiori MD, PhD, Abstract Co-Author: Nothing to Disclose

Glaucia Zanetti MD, Abstract Co-Author: Nothing to Disclose

Dante Luiz Escuissato MD,PhD, Abstract Co-Author: Nothing to Disclose

Filipe Aragao Felix MD, Abstract Co-Author: Nothing to Disclose

Eolo Albuquerque MD, Abstract Co-Author: Nothing to Disclose

The purpose of this presentation is: 1) to describe 35 classic signs in thoracic radiology.
 2) to provide illustrations of these signs.
 3) to discuss the pertinent features related to each sign with emphasis on the cause of the appearance of these signs, and the differential diagnoses to be considered.

Some of the signs that will be discussed in this exhibit are: coin lesion, popcorn calcification, miliary shadowing, sandstorm appearance, ground glass pattern, crazy-paving sign, halo sign, reversed halo sign, honeycomb lung, tree-in-bud, air bronchogram sign, tram-track sign, signet ring sign, finger-in-glove sign, bulging fissure sign, silhouette sign, bat wing appearance, CT angiogram sign, Monod sign, S sign of Golden, wave sign, double density sign, 1-2-3 sign, tapered margins sign etc.

Classic signs in radiology, when invoked, immediately bring an image to mind and add confidence to the diagnosis of certain conditions. Familiarity with these signs helps in arriving at a diagnosis in day-to-day practice.

Manzella, A, Borba Filho, P, Marchiori, E, Zanetti, G, Escuissato, D, Felix, F, Albuquerque, E, Classic Signs in Thoracic Imaging.  Radiological Society of North America 2012 Scientific Assembly and Annual Meeting, November 25 - November 30, 2012 ,Chicago IL. http://archive.rsna.org/2012/12021292.html