Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient 's overlying arm partially obscures the view on the lateral view . Given this , no definite focal consolidation is seen . There is no pleural effusion or pneumothorax . The aortic knob is calcified . Subtle upper paratracheal opacity is stable . The cardiac and mediastinal silhouettes are stable , with the cardiac silhouette enlarged . Degenerative changes are seen in the partially imaged shoulder joints and the acromioclavicular joints .
    OUTPUT:
    
No acute cardiopulmonary process .