Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided Port - A - Cath tip terminates within the upper SVC . Lung volumes are low . Mild enlargement of cardiac silhouette is unchanged . Mediastinal and hilar contours are similar . No pulmonary edema is present . Minimal atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . Moderate multilevel degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Minimal atelectasis in the lung bases without focal consolidation .