Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has been extubated in the interim , which has resulted in lower lung volumes and increased atelectasis in the right lower lobe . Opacity at the left lung base is likely atelectasis , unchanged . Mediastinal and pleural drains have been removed . Small bilateral pleural effusions are presumed . No pneumothorax . The heart remains mildly enlarged , however , there is no pulmonary edema . Emphysema predominantly upper lobes . Cervical ribs are noted . Left pectoral pacemaker , sternotomy wires and a mitral valve prosthesis are constant . The right internal jugular catheter courses into the mid SVC .
    OUTPUT:
    
Lower lung volumes after extubation with worsened atelectasis . No pneumothorax .