Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided central catheter terminates in the mid SVC . The heart size is normal . The hilar and mediastinal contours are unremarkable . The lungs are well expanded and clear . There is no evidence of pulmonary edema or vascular congestion . There is no pneumothorax or pleural effusion . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No acute abnormalities identified to explain patient 's symptoms of chest heaviness . Specifically , no evidence of vascular congestion .