Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs remain clear without consolidation , effusion , or pulmonary vascular congestion . The cardiac silhouette is stable . Moderate hiatal hernia is again noted . Mild compression deformity of a lower thoracic vertebral body is unchanged since ___ .
    OUTPUT:
    
No acute cardiopulmonary process .