Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small to moderate left pleural effusion appears slightly increased as compared to the prior study . There may be minimal right pleural thickening vs trace pleural effusion at the right costophrenic angle . No definite focal consolidation is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are stable . There is mild central pulmonary vascular engorgement .
    OUTPUT:
    
Left pleural effusion slightly increased as compared to the prior study . Minimal pleural thickening versus trace pleural effusion at the right costophrenic angle .