Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright and lateral views of the chest provided . There are midline sternotomy wires and tiny mediastinal clips again noted . Lungs are clear . No focal consolidation , effusion , pneumothorax . The cardiomediastinal silhouette appears normal . Fragmented upper sternotomy wire is noted . Right AC joint arthropathy is noted . Degenerative spurring in the mid thoracic spine noted .
    OUTPUT:
    
No acute intrathoracic process .