Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were obtained . Patchy left base patchy is worrisome for infection . There is additional focus of rounded opacity projecting over the posterior left seventh rib which may relate to what appears to be a prior fracture at that site most likely , although infection involvement is not excluded .
    OUTPUT:
    
Left lower lobe pneumonia . Recommend followup to resolution .