Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . There has been interval resolution of lower lobe pneumonia . The lungs appear clear without focal consolidation , effusion or pneumothorax . The cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
No acute intrathoracic process . Interval resolution of pneumonia .