Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi-upright view of the chest was provided . Dual - lead pacer is poorly visualized due to underpenetration . There is stable mild cardiomegaly with pulmonary hilar congestion and moderate pulmonary edema , effusions difficult to exclude . No large pneumothorax is present . Mediastinal contour is overall stable . Bony structures are intact .
    OUTPUT:
    
Findings compatible with CHF .