Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Heart size and cardiomediastinal contours are normal , allowing for low lung volumes . New small right pleural effusion is present with right base opacity representing either infection or atelectasis . Left lung is clear . No pneumothorax .
    OUTPUT:
    
Low lung volumes with new small right pleural effusion and right base opacity representing either atelectasis or infection .