Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart size is mildly enlarged . Mediastinal contours are normal . The right lower lobe heterogeneous opacity could represent atelectasis , but pneumonia is not excluded . Interstitial lung markings are diffusely increased , suggesting pulmonary edema although other diffuse interstitial lung diseases can not be excluded . Leftward deviation of the trachea is consistent with thyroid goiter . The patient is status post CABG . Pacer leads of a left chest wall generator terminate in the right atrium and right ventricle .
    OUTPUT:
    
1 . Right lower lobe atelectasis , less likely pneumonia . 2 . Diffusely increased interstitial markings could represent pulmonary edema . Repeat radiographs are recommended after therapy to document resolution . 3 . Leftward deviation of the trachea is consistent with thyroid goiter . 4 . Mild cardiomegaly . Final impression was communicated via phone call by ___ to ___ , CCU resident , on ___ at ___ .