Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed and compared to the prior studies . The lungs are clear without focal consolidation , pulmonary edema , pleural effusion or pneumothorax . A left sided bielectrode pacer 's leads end in the expected locations . Mild cardiomegaly and the mediastinal contours are unchanged .
    OUTPUT:
    
1 . No radiographic evidence of pneumonia or acute heart failure . 2 . Unchanged mild cardiomegaly . Comment : Findings were telephoned to Dr . ___ by Dr . ___ at ___ on ___ , 45 minutes after the time of discovery .