Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly and tortuosity thoracic aorta are unchanged . Mild pulmonary vascular congestion is new without overt pulmonary edema . Lungs are clear except for linear opacities in the left mid and both lower lungs suggestive of atelectasis . .
    OUTPUT:
    
Mild pulmonary vascular congestion .