Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was provided . The lungs are clear without focal consolidation , effusion or pneumothorax . The cardiomediastinal silhouette is normal . Bony structures are intact . No free air is seen below the right hemidiaphragm . There are left rib cage deformities again noted .
    OUTPUT:
    
No acute intrathoracic process .