Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP view of the chest provided . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . There is a cortical irregularity along anterior aspect of one of the lower left ribs compatible with chronic fracture .
    OUTPUT:
    
No acute intrathoracic process . No evidence of pulmonary edema .