Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly , unchanged . The aortic knob is calcified . Mediastinal and hilar contours are unremarkable . Streaky retrocardiac and right basilar opacity may reflect atelectasis though infection can not be excluded . Mild pulmonary vascular congestion . Small bilateral pleural effusions can not be completely excluded posteriorly . There is no pneumothorax . Clip is noted within the right upper quadrant of the abdomen .
    OUTPUT:
    
Streaky opacities in the lung bases may reflect atelectasis though infection can not be excluded . Small bilateral pleural effusions posteriorly also likely present . Mild pulmonary vascular congestion .