Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of focal consolidation . Opacity at the left lung base at the cardiophrenic angle is compatible with fat pad seen on prior CT scan . There is no definite effusion noting that the right posterior costophrenic angle is excluded from the field of view . Cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process .