Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is limited secondary to patient positioning . There are linear right greater than left basilar opacities potentially due to atelectasis . Nodular opacity projecting over the left lower lung is compatible with healing posterior ninth rib fracture . Cardiomediastinal silhouette has not significantly changed given differences in positioning .
    OUTPUT:
    
Limited exam . Streaky right greater than left basilar opacities potentially atelectasis noting infection is also possible .