Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided demonstrate slight coarsening of reticular interstitial markings predominantly in the right upper lobe which could represent fibrosis in patient with strong smoking history . There is relative opacity projecting over the right mid lung at the level of two posterior rib deformities which are unchanged . There is no definite sign of pneumonia or mass lesion . No effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
No definite sign of pneumonia or mass lesion . Areas of scarring in the right upper lung , likely represent fibrosis . Given the patient 's extensive smoking history and symptomatology , a non-emergent CT of the chest may be performed to further assess as clinically warranted .