Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to chest radiographs from ___ , there has been interval removal of a right - sided PICC line and placement of a left - sided single - lumen central line with tip terminating in the mid-to - lower SVC . No focal consolidation . No pneumothorax . No pleural effusion . No central vascular congestion or overt pulmonary edema . Mediastinal and hilar contours are normal . Heart size is normal .
    OUTPUT:
    
No evidence of pneumonia .