Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Underpenetration limits assessment . Left chest wall AICD is again noted with pacer lead extending into the right heart though the tip is poorly visualized . There is a right upper extremity PICC line partially imaged , tip in the upper SVC . Cardiomegaly is unchanged . There is no overt evidence for pneumonia or edema . No large effusion or pneumothorax . Bony structures are intact .
    OUTPUT:
    
Cardiomegaly without convincing evidence for pneumonia or edema .