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Case of the Week 433



What is the most likely diagnosis?

  • 53 year-old man with neck pain following fall



Axial CT Images of Trachea

  1. Thyroid Cyst
  2. Zenker's Diverticulum
  3. Pneumomediastinum
  4. Paratracheal Air Cyst
  5. Mounier-Kuhn Syndrome

Additional Image - Sagittal Reconstruction of Trachea

 

 

Additional Images

 

Sagittal Reconstruction of Trachea


Answer:

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4. Paratracheal Air Cyst

.

.

More (Click Discussion Tab)


Paratracheal Air Cysts

General Considerations

  • Benign incidental finding on CT (rarely seen on chest radiographs)
  • 2.0% to 3.7% of the population
  • Most are probably tracheal diverticulum
    • On imaging, 35% have a narrow stalk to the trachea
    • Histology shows ciliated columnar epithelium

MORE...


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This Week

53 year-old man with neck pain following fall
 
Presented as a series of cards, this podcast asks some of the most common causes of neuroimaging findings and diseases making it ideal for a quick review. Can be used as either an audio only or audio/video podcast.; Complements Video Flashcard Podcasts 15, 21,25, 38, 42, 46 and 47.
 
 
Some of the fundamentals of interpreting chest images
 
The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology
 
Recognizing normal and  key abnormal intestinal gas patterns, free air and abdominal calcifications
 
Recognizing the parameters that define a good chest x-ray; avoiding common pitfalls
 
How to recognize the most common arthritides


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LearningRadiology
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LearningRadiology.com
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.