Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided central venous catheter tip terminates in the lower SVC . The heart size is normal . Mediastinal and hilar contours are unremarkable . There is no pulmonary vascular congestion . Streaky opacity within the left lung base likely reflects atelectasis . There is no focal consolidation , pleural effusion or pneumothorax . " Rugger ___ " spine is compatible with renal osteodystrophy .
    OUTPUT:
    
Minimal left basilar atelectasis .