Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Prior left basilar opacity is no longer visualized . Relative elevation of the right hemidiaphragm is unchanged . The lungs are clear of consolidation . Blunting of the posterior costophrenic angle on the left is compatible with trace effusion . Cardiomediastinal silhouette is stable . Mid thoracic dextroscoliosis is again noted . Surgical clips project over the right axilla . Posterior lumbar fixation hardware is also seen . Incidentally noted is a cervical rib on the right .
    OUTPUT:
    
Trace left effusion . No other acute cardiopulmonary process .