Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The central main pulmonary artery contour is mildly prominent . The aortic contour appears within normal limits . The heart is normal in size . Streaky right basilar opacity suggests minor atelectasis . There is no pleural effusion or pneumothorax . The right costophrenic sulcus is partly excluded .
    OUTPUT:
    
No evidence of acute disease .