Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PleurX catheter at the left lung base and chest port terminating in the right atrium . Lingular mass obscuring the left heart border is slightly smaller . Small left pleural effusion is unchanged . No appreciable pneumothorax . Mediastinal and hilar contours are normal .
    OUTPUT:
    
Unchanged small left pleural effusion . No appreciable pneumothorax . Lingular mass is slightly smaller .