Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . The lungs are clear . Blunting of lateral costophrenic angles is thought to be due to overlying soft tissues . Posterior costophrenic angles are sharp without evidence of effusion . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unchanged , noting degenerative changes at the glenohumeral joints bilaterally .
    OUTPUT:
    
No acute cardiopulmonary process .