Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and 2 lateral views of the chest . Based on the frontal view , the lungs are clear . However , on the lateral view there is increased density projecting posteriorly , better seen on 1 view than on the other . This could be due to technical factors given change between the 2 views . The cardiomediastinal silhouette is stable as are the osseous structures .
    OUTPUT:
    
Increased density posteriorly seen on the lateral view thought to be technical . No definite acute cardiopulmonary process .