Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright AP radiograph of the chest . There are low lung volumes . Moderate right and small left bilateral pleural effusions persist , although right pleural effusion appears decreased in extent . . There is also likely a component of bibasilar atelectasis . Underlying infection in these locations can not be ruled out . The remainder of the lungs bilaterally is clear . There is no pneumothorax . A right PICC terminates in the mid SVC . The cardiac size is unchanged .
    OUTPUT:
    
Moderate right and small left pleural effusions with associated atelectasis . Underlying infection in the lower lobes can not be excluded .