Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . No prior . The lungs are clear of focal consolidation . There is some blunting of the left posterior costophrenic angle , which could be due to atelectasis or small effusion versus small Bochdalek hernia . Cardiomediastinal silhouette is within normal limits given significant rotation to the right . Degenerative changes noted at the acromioclavicular joints bilaterally . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process . Blunting of the left posterior costophrenic angle , potentially due to atelectasis or Bochdalek hernia , noting that underlying consolidation can not be completely excluded . Please clinically correlate .