Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior radiographic examination dated ___ , there has been no significant interval change . Lung volumes remain low , leading to crowding of the bronchovascular structures . There is no evidence of focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . Mild to moderate cardiomegaly and enlarged bilateral pulmonary arteries are noted , better evaluated on the patient 's prior CT torso dated ___ .
    OUTPUT:
    
1 . No evidence for acute cardiopulmonary process . 2 . Chronic findings of mild - moderate cardiomegaly and enlargement of the bilateral pulmonary arteries , suggesting underlying pulmonary hypertension .