Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes with small bilateral pleural effusions . Patient 's known left pleural thickening and left apical pneumothorax is better seen on CT chest of the same date . Hilar and mediastinal silhouettes are unremarkable . Heart is mildly enlarged . Patient is status post medial sternotomy and CABG . Pacemaker device is in place . Remote right - sided rib injuries are demonstrated .
    OUTPUT:
    
Small bilateral pleural effusions . Patient 's known left apical pneumothorax , better seen on CT chest of the same date .