Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with 1 day earlier , the overall appearance is similar . Again seen is a left chest wall pacer , with lead tips over the right ventricle . Also again seen is cardiomegaly and hyperinflation . There is upper zone redistribution and mild vascular plethora . There is bibasilar atelectasis , similar to the prior film , without frank consolidation . No gross effusion .
    OUTPUT:
    
Mild CHF and bibasilar atelectasis . Doubt significant interval change compared with 1 day earlier .