Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Dialysis catheter is again seen with tip in the region of the right atrium . Midline sternotomy wires and mediastinal clips are again noted . Lungs appear clear . No large effusion or pneumothorax . The heart mediastinal contours are stable . No acute bony abnormalities . Degenerative changes of both shoulders again noted .
    OUTPUT:
    
No acute findings .