Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present . There is a PICC line partially visualized overlying the right upper arm with catheter tip in the region of the right axilla . Cardiomegaly is mild . Hila appear congested . No frank edema . Retrocardiac opacity could represent atelectasis versus an early pneumonia . No large effusion or pneumothorax . Aortic calcifications again noted .
    OUTPUT:
    
Right - sided PICC line terminates at the right axilla . Cardiomegaly with hilar congestion . Retrocardiac opacity likely atelectasis , difficult to exclude pneumonia .