87-year-old male with altered mental status

Brian M. Trotta, MD, University of Virginia Department of Radiology, Charlottesville, VA

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Abstract:  n 87-year-old male with altered mental status is referred from a community hospital for an abnormal computed tomography (CT) scan. The patient has a history of aortic stenosis with multiple similar episodes.

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Question Text 

What is the most likely etiology of the gas?
 

Answers
 Answer: Trauma 
Correct Answer? 
No
Answers
 Answer: Infection 
Correct Answer? 
No
Answers
 Answer: Iatrogenic from intravenous line 
Correct Answer? 
Yes
Answers
 Answer: Bronchovascular fistula 
Correct Answer? 
No
 
Case Study Link: 87-year-old male with altered mental status   

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