Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable in appearance . Since the prior chest x-ray , right PICC has been removed , and a left - sided catheter has been placed , with tip terminating in the upper superior vena cava . There is no visible pneumothorax . Patchy opacities overlie the lower thoracic spine on the lateral radiograph and likely correspond to the left lower lobe given associated partial obscuration of the posterior left hemidiaphragm . Small bilateral pleural effusions are also noted .
    OUTPUT:
    
1 . Patchy left lower lobe opacity , most likely due to focal atelectasis in this recently postoperative patient . Pneumonia is considered less likely , but followup radiographs may be helpful in this regard . 2 . Small bilateral pleural effusions .