Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . The lungs are clear . There is no effusion or pneumothorax . Cardiomediastinal silhouette is normal . There is an acute comminuted fracture identified through the mid portion of the left clavicle , better seen on dedicated exam performed the same day . No other displaced fracture is identified .
    OUTPUT:
    
Acute comminuted mid left clavicular fracture . Otherwise , unremarkable chest x-ray .