Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and mitral valve repair . Right - sided Port - A - Cath tip terminates at the junction of the SVC and right atrium . Left - sided dual - chamber pacemaker device is re - demonstrated with leads in the right atrium and right ventricle . Heart size is normal . Aortic knob calcifications are re- demonstrated . Mediastinal and hilar contours are unchanged . Small right pleural effusion which is partially loculated laterally and medially appears relatively unchanged as is a small left pleural effusion . Lungs remain hyperinflated with streaky opacities in the lung bases , potentially atelectasis though infection can not be excluded . No pneumothorax is identified , and no pulmonary vascular congestion is present . The patient is status post left mastectomy and breast implant . Cholecystectomy clips are noted in the right upper quadrant of the abdomen . There are no acute osseous abnormalities .
    OUTPUT:
    
Relatively unchanged appearance of small bilateral pleural effusions , with the right pleural effusion appearing partially loculated . Patchy opacities in lung bases are nonspecific and may reflect atelectasis or infection .