Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to radiograph from ___ , the cardiomediastinal silhouette is stable and within normal limits . The bilateral hila are grossly unremarkable . No CHF , focal infiltrate , pleural effusion , or pneumothorax detected . Again seen at the right cardiophrenic angle is a stable soft tissue density , likely relating to epicardial fat , unchanged . Also again noted is biapical pleural - parenchymal scarring , similar to the prior film .
    OUTPUT:
    
No acute cardiopulmonary process . No evidence of pneumonia .