Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . Lung volumes remain low . An area of ill - defined opacity in the left lower lung zone is difficult to correlate on chest CT from ___ . The heart size is top normal with an equivocal pericardial effusion seen on the lateral view . Widening of the right paratracheal is more pronounced on this study than in ___ . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No radiographic evidence for acute cardiopulmonary process . 2 . CT of chest may provide more information regarding pericardium and right paratracheal widening if clinically relevant .