Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The lungs are clear bilaterally . There is no focal consolidation , effusion , or pneumothorax . The heart appears top normal in size . The mediastinal contour appears stable . Bony structures are intact . There is an old left seventh posterior rib deformity .
    OUTPUT:
    
Top normal heart size . Otherwise , unremarkable .