PA Anatomy: Brain: Case 2

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CNspine
chestneck abdomen1 pelvis1 limbs1 brain1
case1 case2 case3 case4
selCT2
selCT1

The blood collection is outlined in red. How would you describe the shape of this blood collection? There is also overlying soft tissue swelling on the right (red arrows).

What is technically different about this image compared to the other image? What is circled in red?

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