Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . Thin opacity projecting over the pleura along the left lateral lower hemithorax is stable since at least ___ and actually may relate to overlying soft tissue other than pleural - based . Cardiac and mediastinal silhouettes are stable , as are the hilar contours . Degenerative changes are seen at the acromioclavicular joints .
    OUTPUT:
    
No acute cardiopulmonary process .