Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . There is elevation of the right hemidiaphragm . Linear opacity at the left lung base is suggestive of atelectasis versus scarring . There is no focal consolidation . No effusion . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . Median sternotomy wires are identified . No acute osseous abnormalities detected . Tubing from patient 's ventriculoperitoneal shunt is seen to course along the right anterior chest wall .
    OUTPUT:
    
No acute cardiopulmonary process .