Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There are linear opacities at the right base which likely represent atelectasis as well as crowding of the pulmonary vasculature due to the low lung volumes . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal . The hilar and cardiomediastinal contours are normal .
    OUTPUT:
    
No evidence of pneumonia or congestive heart failure .