Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . There is prominence of the upper mediastinum compatible with mediastinal hematoma identified by CT . The lungs are clear . The cardiac silhouette is within normal limits . There is an acute - appearing left lateral ninth rib fracture .
    OUTPUT:
    
1 . Widening of the upper mediastinum , better characterized by CT scan as hematoma within the mediastinum . 2 . Acute - appearing left lateral ninth rib fracture .