Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port -A - Cath with the tip in the mid SVC . There are low lung volumes . Minimal subsegmental atelectasis in the lung bases bilaterally . No focal consolidation . No interstitial pulmonary edema . The cardiac silhouette is compared .
    OUTPUT:
    
No acute pneumonia , interstitial edema or effusions .