Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is no significant interval change from the recent CT and chest radiographs . Extensive fibrosis and upper lobe scarring is unchanged . An ovoid density in the right mid lung corresponds to a calcification on prior CT . There is slight upward retraction of the pulmonary hila , unchanged . The heart and mediastinal contour is unchanged . No evidence of superimposed pneumonia .
    OUTPUT:
    
Extensive scarring without superimposed pneumonia . Ovoid nodular opacity in the right mid lung corresponds with known calcification on prior CT .