Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views of the chest with limited lateral view of the patient who is in a wheelchair demonstrate adequate lung volumes . An opacity at the junction of the first rib and the sternum is newly apparent . There is no pneumothorax . Top normal heart size is unchanged , mediastinal contours are unchanged . There are post-surgical changes of CABG . The pulmonary vasculature is normal .
    OUTPUT:
    
An opacity at the junction of the first rib and the sternum is newly apparent , and may be pneumonia . Follow up chest radiographs in 4 weeks is recommended to document resolution .