Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Congenital Absence of the Pericardium
- Radiologic Findings
- Chest radiograph shows levoposition of the cardiac silhouette, loss of the right heart border, prominent main pulmonary artery, and a “tongue” of lung tissue interposing between the main pulmonary artery and aorta.
MRI demonstrates marked displacement of the heart into the left hemithorax with the cardiac apex pointing posteriorly, the main pulmonary artery extending far beyond the mediastinal margins into the left lung, and the pathognomic presence of lung parenchyma in the usually lung-free aortopulmonary space. No pericardium is present over most of the heart. Coronal image shows the lung extending below the heart, interposing between its inferior surface and the left diaphragm.
- Brief Review
- Congenital defects (or absence) of the pericardium are a relatively rare anomaly that was first described in 1559 by Columbus. Pericardial defects have generally been classified as being complete or partial. In the majority of cases, pericardial defects affect the left side of pericardium rather than the right.
Congenital absence of the pericardium has a common presentation pattern with periodic stabbing chest pain that may mimic coronary artery disease. Chest radiography and MRI are required for definitive diagnosis. Characteristic imaging findings are described above.
- References
- 1. Gatzoulis MA, Munk MD, Merchant N, et al. Isolated congenital absence of the pericardium: clinical presentation, diagnosis, and management. Ann Thorac Surg. 2000;69:1209-1215
2. Raman SV, Daniels CJ, Katz SE, et al. Congenital absence of the pericardium. Circulation. 2001;104:1447-1448.
3. Faridah Y, Julsrud PR. Congenital absence of pericardium revisited. Int J Cardiovasc Imaging. 2002;18:67-73.
- Keywords
- Pericardium, Congenital,