Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Wandering Pericardial Cyst
- Radiologic Findings
- First chest CT scan demonstrates low-attenuated cystic lesion with lobulated contour along the left cardiac border and left major fissure. A pedicle attaching the cystic lesion to the pericardium was suspected, adjacent to left ventricle.
Follow-up chest CT scan performed after 4 years showed interval migration of this cystic lesion within the left major fissure to the left paracardiac area without significant change in total volume.
- Brief Review
- Pericardial cysts are congenital lesions that arise as a result of aberrant formation of the somatic cavities. They are most commonly located in the right anterior cardiophrenic angle, with the next most frequent location being the left anterior cardiophrenic angle. Occasionally, a pericardial cyst may arise elsewhere in the mediastinum. These lesions are thought to be pedunculated, growing on a stalk away from the pericardium. They are mostly asymptomatic but may cause chest pain, cough, fever, and arrhythmias. Rare cases may cause erosion into vascular structures, pericarditis, obstruction of the right ventricular outflow tract, and pulmonary stenosis. Typically, pericardial cysts appear on CT images as well-defined, nonenhancing, homogeneous fluid-attenuation lesions that contain no internal septa. Occasionally, the cyst may contain proteinaceous or hemorrhagic fluid. Positional change of a chest lesion is thought to be virtually pathognomonic of a solitary fibrous tumor of the pleura, however, wandering pericardial cyst is another very rare but possible cause of a mobile lesion in the chest.
- Please refer to
Case , -
KSTR Imaging Conference 2015 Spring Case 1,
- References
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- Keywords
- Pericardium, Mediastinum, Congenital,