Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided demonstrate clear lungs without focal consolidation , effusion , or pneumothorax . The heart appears stable and normal in size . The aorta is mildly calcified along the knob . Bony structures are intact with slight diffuse demineralized . No free air below the right hemidiaphragm . Nipple shadows are noted bilaterally .
    OUTPUT:
    
No acute intrathoracic process .