Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small left apical pneumothorax is unchanged , measuring 15 mm . The chest tube still project at the left upper hemithorax . Small left pleural effusion with mild atelectasis has increased . Right lung is unremarkable . Left - sided pacemaker has leads in adequate position in the right atrium and ventricle . Mediastinal and cardiac contours are normal .
    OUTPUT:
    
1 . Small left apical pneumothorax after pacemaker placement is unchanged . 2 . Increase in small left pleural effusion with adjacent atelectasis .