PMC9075046_01
CT pulmonary angiogram (CTA) shows in A a right lower lobe atelectasis (black arrow), and in B a cystic liver lesion (white arrow).
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F1
Incidentally a cystic liver lesion was identified on the upper abdominal sections (Figure 1).
Contrast-enhanced abdominal CT shows a cystic liver lesion with a detached serpentine hyperdense membrane within the cyst, consistent with water lily sign (white arrow in A and B). There is a subcapsular wall defect (black arrow in B and C), fat stranding and free perihepatic fluid (arrowheads in A, B and D). Note the focal intrahepatic bile duct dilatation (hollow arrow in D).
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F2
Fat stranding and a small amount of free perihepatic fluid were also present (Figure 2).