Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal opacity , pulmonary edema , pleural effusion or pneumothorax . There is mild cardiac enlargement , in particular the right atrium is enlarged . The mediastinal contours are normal . There is no free air beneath the right hemidiaphragm . Central endplate compression deformities throughout the thoracic spine are of uncertain chronicity .
    OUTPUT:
    
1 . Mild cardiomegaly , particularly right atrial enlargement . 2 . Central endplate compression deformities throughout the thoracic spine are of uncertain chronicity . These findings are commonly seen from infarction .