Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . Left hilar / perihilar opacity corresponds to patient 's known perihilar mass , better assessed on CT . Old - appearing rib deformities on the left may relate to prior fractures , metastatic disease not excluded , although better evaluated on CT . Extensive vascular calcification is seen projecting over the upper hemithorax bilaterally . No new focal consolidation , pleural effusion , or evidence of pneumothorax is seen .
    OUTPUT:
    
Left perihilar opacity corresponding to known pulmonary mass again seen . Otherwise , no acute cardiopulmonary process .