Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low with secondary bronchovascular markings . Left basilar opacity is similar compared to prior , potentially atelectasis although infection is not excluded . There is pulmonary vascular congestion without overt edema .
    OUTPUT:
    
Low lung volumes with possible superimposed pulmonary vascular congestion without overt edema . Left basilar opacity potentially atelectasis , to be correlated clinically .