Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP chest radiograph was obtained . Indistinctness of the central pulmonary vasculature and bibasilar septal lines are new since ___ . A small right pleural effusion is also new . Aortic calcifications are mild . Cardiomegally has slightly increased since ___ .
    OUTPUT:
    
Mild interstitial pulmonary edema , small right effusion , and progressive cardiomegally compatible with CHF .