Case 20 Answer

chest Jan 27, 2016

The heart is the key here. Notice the low density appearance within the myocardium, or more specifically, in the subendocardial region of the left ventricle. 

Answer: Subendocardial fat deposition consistent with prior myocardial infarct (ie fatty replacement of post-infarct scarring)

Reference: http://www.ajronline.org/doi/full/10.2214/AJR.08.1608  or http://pubs.rsna.org/doi/full/10.1148/rg.306105519

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