- Rare congenital abnormality
- Most common benign pericardial mass
- Asymptomatic
- Incidental finding on chest radiography
- Thin, smooth walls, no internal septa, attached to pericardium directly or by a pedicle
Imaging
- Round or oval in shape
- Frequently at cardiophrenic angles, mainly right
- Chest X-ray
- Sharply demarcated mass, well circumscribed, abnormal prominence of cardiac border in right cardiophrenic angle
- CT
- Well defined mass with fluid density
- No enhancement on contrast
- MRI
- Low T1 signal (hyper intense if proteinaceous)
- Homogeneously high T2
- No enhancement on contrast
Read more
Klatte, Eugene C., and Heun Y. Yune. “Diagnosis and treatment of pericardial cysts.” Radiology 104.3 (1972): 541-544.
Feigin, David S., et al. “Pericardial cysts: a radiologic-pathologic correlation and review.” Radiology 125.1 (1977): 15-20.
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