Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . Is small peripheral opacity in the left mid lung is unchanged compared to the prior study and likely reflects an area of atelectasis or scarring as seen on the prior CT chest . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Compression deformity of the lower lumbar spine is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .