Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright view of the chest was obtained portably . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . Heart size is within normal limits . Mediastinal silhouette and hilar contours are normal aside from aortic knob calcifications . No upper abdominal or osseous abnormality is identified .
    OUTPUT:
    
No pneumonia , edema or effusion .