Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . A focal eventration of the right hemidiaphragm is noted . The lungs appear clear bilaterally . No evidence of pneumonia or pulmonary edema . The heart is within normal limits of size . The mediastinal contour is unremarkable though there is faint atherosclerotic calcifications along the knob of the aorta . Mild degenerative changes are noted in the thoracic spine . No free air is seen below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .