Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Improved lung volumes bilaterally . The lungs are clear without focal consolidation . Previously noted left base opacity has improved . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Right Port - A - Cath position unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . Improved lung volumes bilaterally .