Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph provided . The lungs appear clear bilaterally . There is no focal consolidation , effusion or pneumothorax . The cardiomediastinal silhouette appears normal . Bony structures are intact . There is no free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .