Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear opacities within the lung bases are consistent with subsegmental atelectasis . There is evidence of pulmonary vascular congestion and central venous engorgement though no overt interstitial pulmonary edema . No large pleural effusions are evident . Mediastinal and hilar contours are within normal limits . Top normal size of the cardiac silhouette may be partly related to the AP technique though could also be secondary to developing pulmonary edema . No pneumothorax is evident . A large - bore left - sided hemodialysis catheter terminates in the right atrium , unchanged from prior .
    OUTPUT:
    
1 . Moderate pulmonary vascular congestion without overt edema . No large effusions . 2 . No confluent consolidation to suggest pneumonia .