Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall pacer device is again seen with leads extending to the region the right atrium and right ventricle . The heart remains moderately enlarged . The aorta is unfolded . There is a VP shunt coursing over the right hemi thorax into the upper abdomen . Subtle hazy opacity at the right lung base may represent a small partially layering pleural effusion and subjacent atelectasis . No convincing evidence for pneumonia or pulmonary edema . No pneumothorax . Bony structures are intact .
    OUTPUT:
    
Stable cardiomegaly . Probable small right pleural effusion and right basal atelectasis . No overt signs of edema .