Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation of the lung apices is limited by patient head positioning . Left lower lobe opacification and pleural effusion are unchanged compared to 1 day prior , but decreased compared to ___ . No new focal opacities . Right lung is fully expanded and clear . Mild cardiomegaly is stable since ___ . No pulmonary vascular congestion or pulmonary edema . Cardiomediastinal hilar silhouettes are normal .
    OUTPUT:
    
Small to moderate left pleural effusion and adjacent relaxation atelectasis are chronic and essentially unchanged compared to recent prior radiographs , decreased compared to more distant priors .