CASE 2: Imaging Description

CASE 2: Explanation of Imaging Findings

CT head without contrast

CASE 2

A CT examination of the head without contrast was performed. 2 select images are shown.

Questions

1. What is the difference between the image on the right and the image on the left?

CT images are "windowed" to bring out specific structures. Different windows can be created by the CT scanner or by the radiologist at the PACS station.
The image on the right, labelled "bone windows" is optimized to evaluate the bony structures for fractures.
The image on the left, labelled "brain windows" is optimized to evaluate the brain parenchyma for hemorrhage and other soft tissue abnormalities.

2. Where is the abnormality located?

3. Describe the abnormality using appropriate terminology.

4. What vascular structure is typically injured with this type of hemorrhage?

5. What service should be consulted immediately?

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