CTICasesPericardial Cyst in Fissure
Imaging findings
Cardiac CT demonstrates a well-defined water-attenuation structure (pericardial cyst) extending into the right oblique/interlobar fissure, tracking down to the level of the inferior vena cava. It conforms to the shape of the fissure.
Key takeaways
Pericardial/mesothelial cysts can occasionally extend into adjacent interlobar fissures on a stalk. They are benign, water-attenuation, extrapleural structures that can change shape or position on serial scans.
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