Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased lucency along the right heart border corresponds with minimal pneumomediastinum seen on recent CT abdomen . No apical pneumothorax is evident . There is no free air below the diaphragm . The lungs are clear . There is no focal consolidation . No pulmonary vascular congestion or overt edema is identified . There is new mild blunting of the left costophrenic angle consistent with a developing small pleural effusion . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
1 . Minmial pneumomediastinum 2 . Developing new left pleural effusion Both the pneumomediastinum and pleural effusion could be further assessed on follow - up PA and lateral chest x-ray if clinically indicated .