Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there has been interval resolution of a left lung base opacity . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Surgical clips are stable .
    OUTPUT:
    
Resolution of previously seen left lung base opacity . No acute cardiopulmonary process .