Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . A smooth opacity at the medial right base corresponds to a moderate amount of pre-cardial fat identified on the prior MRA . The cardiomediastinal silhouette is normal . The osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .