FINDINGS:
Lung volumes are slightly low.  The heart size is top normal with a left
 ventricular predominance.  The mediastinal and hilar contours are within
 normal limits.  Left lower lobe opacity is concerning for pneumonia.  Minimal
 patchy opacity in the right lung base could reflect atelectasis.  No definite
 pleural effusion or pneumothorax is seen.  Minimal patchy opacity is also seen
 within the left upper lung field.  There are no acute osseous abnormalities.

IMPRESSION:
Left lower lobe pneumonia.  Additional patchy opacity within the left upper
 lung field could reflect a  area of infection.  Probable right basilar
 atelectasis.  Follow up radiographs are recommended to ensure resolution this
 finding after treatment.