Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest demonstrate elevated right hemidiaphragm which is similar to what was seen on previous exam . The lungs are well expanded and clear . There is no indication of a new acute pulmonary process . There is no pneumothorax or pleural effusion . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Persistent elevated right hemidiaphragm . Essentially unchanged chest radiograph from prior imaging , with no evidence of acute cardiopulmonary process .