Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right lower lung pneumonia improved since radiograph from ___ . Severe chronic cardiomegaly unchanged since ___ . Moderate chronic hilar enlargement since ___ probably secondary to pulmonary hypertension . The aorta is calcified . There is no pneumothorax or pleural effusion . Patient is status post bilateral shoulder arthroplasties .
    OUTPUT:
    
1 . Improved right lower lobe pneumonia . Follow - up in 6 weeks to confirm completeresolution . 2 . Severe chronic cardiomegaly . 3 . Probable chronic pulmonary hypertension .