Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild to moderately enlarged . There are patchy opacities in the lower lungs including a suspected small pleural effusion on the right . Although infection can not be excluded , right basilar opacity may be due to atelectasis associated with a pleural effusion . The pulmonary vascularity is mildly prominent with upper zone redistribution , although without frank edema . There is no pneumothorax .
    OUTPUT:
    
Findings suggesting pulmonary venous hypertension or slight congestion with a suspected right - sided pleural effusion . Patchy right basilar opacity is probably compatible with associated atelectasis , although an infectious process is hard to exclude .