Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . The known gastric pull - through for esophageal cancer is not distended . Bony coalition between the posterior arch of the sixth and seventh right ribs is congenital . There is increased vague opacity in the right mid lung superimposed on the site of bony coalition . Opacity in this area is increased since ___ but is similar to ___ , and may represent recurrent pneumonia . A right lower lobe nodule is similar in size through ___ . No pleural effusion or pneumothorax is present . The pulmonary vasculature is unremarkable . No radiopaque foreign body .
    OUTPUT:
    
Right mid lung opacity , waxing and waning since ___ , compatible with recurrent pneumonia . Follow - up is recommended after therapy to exclude neoplasm given the patient 's history of malignancy . Final impression was communicated via phone call to Dr . ___ by ___ ___ on ___ at 12 :45 pm .