Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Markedly enlarged central pulmonary arteries , consistent with pulmonary artery hypertension , stable . Increased heart size , stable . Mild pulmonary venous congestion is new . Bibasilar opacities , likely atelectasis , mildly worsened . Probable small left pleural effusion . No pneumothorax . No definite free air .
    OUTPUT:
    
Pulmonary artery hypertension . Mild pulmonary venous congestion . Bibasilar opacities , likely atelectasis , mildly worsened .