Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is the dual - chamber intracardiac device with the leads in the expected locations of the right atrium and right ventricle respectively . There is no focal consolidation , pleural effusion , or pneumothorax . The patient is status post sternotomy and valve replacement . The heart size is normal . The hilar and mediastinal contours are unremarkable . Again seen are mild bibasilar opacities , similar to the prior study and may represent mild chronic lung disease . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute abnormalities identified to explain patient 's pulmonary hypertension .