What is the most likely diagnosis? 
              
                - 41 year-old male, pre-op for hernia surgery

                  
              Frontal and Lateral Chest Radiographs
            
              - Tetralogy of Fallot
- Pericardial cyst
- Hypertension
- Congenital defect in pericardium
- Ventricular aneurysm
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                  Answer:
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                4. Congenital Defect in the Pericardium
              
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              More (Click Discussion Tab) 
             
            
              
              
              Congenital Defect in the Pericardium
              General Considerations
              
                - Rare absence of  a part or all of the pericardium
- Due to failure  of pericardial development secondary to premature atrophy of the left duct of  Cuvier (cardinal vein) which then fails to nourish the left pleuropericardial  membrane
- Male:female  ratio of 3:1
- May be detected  at any age but most commonly in low 20’s
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