Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate bibasilar atelectasis with decreased lung volumes compared to the prior study . Small right pleural effusion is likely . This accentuates the cardiac contour and pulmonary vasculature . No acute consolidation is seen . No pneumothorax is seen . Of note , mild undulation in the right hemidiaphragm is unchanged since ___ .
    OUTPUT:
    
No evidence of acute infection . Bibasilar atelectasis with decreased lung volumes and possible small right pleural effusion .