Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no new lung lesion . Patient had right lower lobe lobectomy for lung cancer . There is no sign of recurrence on this chest x-ray . Moderate lung hyperinflation is unchanged . Mediastinal and cardiac contours are normal . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
There are no significant changes since ___ and no sign of intrathoracic malignancy .