Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New poorly defined opacities have developed in the right upper lobe and right middle lobe , in regions of the lungs that were clear by prior chest x-ray and CT scan . Heart is enlarged , and bilateral central pulmonary artery enlargement is present , suggesting pulmonary arterial hypertension . Aortic valvular calcifications are present in keeping with history of aortic stenosis . There is no pleural effusion or acute skeletal finding .
    OUTPUT:
    
New poorly defined opacities in right upper and mid lung . Although nonspecific , they are most concerning for pulmonary infection or aspiration given rapid development since ___ . Findings communicated by phone to ___ at 4 :30 p .m . on ___ at the time of discovery .