Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided demonstrating no focal consolidation , effusion or pneumothorax . The heart is top normal in size though stable . The mediastinal contour appears normal . Imaged osseous structures appear intact , though there is severe degenerative disease at the left shoulder partially imaged .
    OUTPUT:
    
No acute findings in the chest . Top normal heart size . Degenerative changes of the left shoulder joint .