Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates a right internal jugular central venous catheter in the low SVC . The patient has been extubated and the NG tube , left chest tube and mediastinal drains have been removed . Lung volumes are lower with increased retrocardiac atelectasis and a small left pleural effusion . A small left apical pneumothorax present . No right pleural effusion or pneumothorax .
    OUTPUT:
    
Small left apical pneumothorax after removal of left chest tube .