Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Emphysema is severe . Calcific left fibrothorax restricts the volume of the left lung and obscures its structure . There may be a nodule in the right lung at the level of the anterior right fifth rib . A small pneumonia would likely be missed , detectable only by CT scanning . Heart size in normal and there is no pulmonary edema .
    OUTPUT:
    
Severe emphysema . Restrictive calcific left fibrothorax . Possible left lung nodule . Any small pneumonia unrecognizable . Chest CT suggested .