Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is slightly rotated . The heart is mildly enlarged . The aortic knob is substantially increased in size . since ___ . There is increased prominence of the central pulmonary vessels with multiple Kerley B lines present , compatible with pulmonary congestion and mild interstitial edema . No large pleural effusions are seen . The aorta appears tortuous . There is no pneumothorax .
    OUTPUT:
    
Substantial increase in the size of the aortic knob . CT is recommended to rule out acute aortic process . Central vascular congestion with mild interstitial edema , worst since ___ examination .