Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left costodiaphragmatic angle has been cutoff at the exam . Small left lower lung consolidation could be atelectasis ; however , aspiration and pneumonia can not be excluded . Cardiac contour is mildly enlarged . The lungs are otherwise clear . There is no pneumothorax . Right clavicular fracture is seen .
    OUTPUT:
    
Stable left lower lobe consolidation which could represent atelectasis , aspiration or pneumonia .