Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient 's condition required examination in sitting upright position using AP frontal view and left lateral views . Comparison is made with the next preceding portable chest examination of ___ . As before , there is status post sternotomy . Moderate cardiac enlargement is seen . Previously identified permanent pacer with dual intracavitary electrodes and ICD device in unchanged position . The same holds for the recently placed right - sided PICC line which is now seen to reach in the upper third of the right atrium . Moderate cardiac enlargement as before . No signs of acute CHF and no acute parenchymal infiltrates are present . Lateral and posterior pleural sinuses are free from any fluid accumulation .
    OUTPUT:
    
Stable chest findings , no evidence of new acute pneumonia .