Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . The lungs are clear of focal consolidation or large effusion noting that the left lateral costophrenic angle is excluded from the field of view . The cardiomediastinal silhouette is stable . Degenerative changes seen at the right shoulder as well as posttraumatic changes of prior left AC joint separation .
    OUTPUT:
    
No definite acute cardiopulmonary process .