Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs well expanded . There is opacity at the medial right lung base which is compatible with a prominent fat pad as seen on prior CT scan . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable . Mediastinal clips are noted .
    OUTPUT:
    
No acute cardiopulmonary process .