E2671. A Primer of Key Radiology Signs: What the Resident Should Know!
  1. Anika Dutta; Mayo Clinic
  2. Yasmeen Tandon; Mayo Clinic
Imaging signs have long been taught to radiology trainees to help them rapidly recognize a diagnosis by associating an anatomic image with an inanimate object. Recognizing a wide selection of radiology signs that are inspired by inanimate objects may lead to a quick diagnosis and expedited treatment for often life-threatening conditions

Educational Goals / Teaching Points
By the end of this presentation the viewer should be able to recognize several radiographic and CT imaging signs and their associated pathologies, understand the pathophysiology involved in creating the radiological appearance, and recognize common treatments for these pathologies.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
The exhibit will have a case based pictorial review of multiple commonly encountered radiology signs. We will first review multiple important food signs including berry aneurysm, pancake brain, salt and pepper calvarium, honeycomb lungs, eggshell calcification, popcorn calcification, headcheese sign, oreo cookie sign, coffee bean, apple core lesion, omental caking, nutmeg liver, Pepsi sign, and sausage digit. The next subsection of signs we will cover include household objects. These include the corkscrew, coin, dinner fork deformity, telephone receiver deformity, hockey stick, napkin ring, polka-dot, rugger jersey spine, and string of pearls. We will then review multiple astronomically inspired signs including comet tail, galaxy, "starry sky" appearance, sunburst, and twinkling artifact. Finally, we will review multiple weapon and ammunition-inspired signs including bullet-shaped vertebra, cannonball metastases, saber-sheath trachea, and Scimitar syndrome.

Imaging signs can help a trainee rapidly recognize a diagnosis by associating an anatomic image with an inanimate object. At the end of this presentation the viewer will confidently be able to recognize multiple key radiology signs inspired by inanimate objects.