Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient had recent right upper lobe lobectomy for lung cancer . Residual small right apical pneumothorax has improved slightly . Chest tube and right jugular line have been removed . Pleural effusion is small and unchanged . Mediastinal and cardiac contours are stable .
    OUTPUT:
    
Patient had recent right upper lobe lobectomy for lung cancer . Residual small right apical pneumothorax has slightly improved .