Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires and prosthetic cardiac valve noted . The lungs are hyperinflated with streaky reticular markings as seen previously likely representing a component of fibrosis . No lobar consolidation , effusion or pneumothorax . No overt edema . Heart and mediastinal contours are stable . Bony structures are intact . DISH related changes of the T - spine noted .
    OUTPUT:
    
No acute intrathoracic process .