Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded . Subtle increased opacity in the right lower hemi thorax could represent an early bronchopneumonia . No edema , effusion , or pneumothorax . The heart size is normal . The mediastinum is not widened . Prominent pulmonary arteries are similar to the prior exam and may suggest sequelae of chronic pulmonary hypertension . A left posterior a lateral rib fracture is old , unchanged .
    OUTPUT:
    
1 . Subtle increased opacity in the right lower lobe could represent an early bronchopneumonia . 2 . Prominent pulmonary arteries may suggest sequelae of chronic pulmonary hypertension .