Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate low lung volumes resulting bronchovascular crowding . Severe cardiomegaly is again demonstrated . Left - sided dual lead pacemaker is in unchanged position . There is a small right sided pleural effusion with adjacent atelectasis . There is no pneumothorax .
    OUTPUT:
    
Small right sided pleural effusion with adjacent atelectasis . Superimposed infection could be considered in the appropriate clinical setting .